The whole concept of audio conferencing – the ability for a diverse range of participants to dial into a central location for a meeting – is hardly a new concept for the 21st century. Its prevalence, however, has undoubtedly grown sharply in the last 15-20 years; to the point now where, to use an analogy, it very much feels like a DVD when compared to full video conferencing, à la Blu-Ray. When you also consider the widening proliferation of remote workers, globalisation and the meteoric rise of cloud computing, businesses suddenly find themselves having to find answers to the following questions:

  • How can I enable my colleagues to straightforwardly and dynamically collaborate across vast distances?
  • How do I address the challenges of implementing a scalable solution that meets any regulatory or contractual requirements for my organisation?
  • What is the most cost-effective route to ensuring I can have a genuinely international audio-conferencing experience?
  • How do I identify a solution that users can easily adopt, without introducing complex training requirements?

These questions are just a flavour of the sorts of things that organisations should be thinking about when identifying a suitable audio conferencing solution. And there are a lot of great products on the market that address these needs – GoToMeeting or represent natural choices for specific scenarios. But to provide a genuinely unified experience for existing IT deployments that have a reliance on Skype for Business/Microsoft Teams, the audio conferencing add-on for Office 365 (also referred to as Skype for Business Online Audio Conferencing) may represent a more prudent choice. It ticks all of the boxes for the questions above, ensuring that users can continue utilising other tools they know and use every day – such as Microsoft Outlook and Office 365. Admittedly, though, the solution is undoubtedly more geared up for Enterprise deployments as opposed to utilisation by SMBs. It may, therefore, become too unwieldy a solution in the hands of smaller organisations.

I was recently involved in implementing an audio conferencing solution for Skype for Business Online, to satisfy the requirement for international dialling alluded to earlier. Having attended many audio conferences that utilise the service previously, I was familiar with the following experience when dialling in and – perhaps naively – assumed this to be the default configuration:

  1. User dials in and enters the meeting ID number.
  2. An audio cue is played for the conference leader, asking them to enter their leader code (this is optional).
  3. The user is asked to record their name and then press *
  4. The meeting then starts automatically.

For most internal audio conferences (and even external ones), this process works well, mainly when, for example, the person organising the meeting is doing so on behalf of someone else, and is unlikely to be dialling in themselves. However, I was surprised to learn that the actual, default experience is a little different:

  1. User dials in and enters the meeting ID number.
  2. An audio cue is played for the conference leader, asking them to enter their leader code (this is optional).
  3. The user is asked to record their name and then press *
  4. If the leader has not yet dialled in, all other attendees sit in the lobby. The call does not start until the leader joins.

The issue does not relate to how the meeting organiser has configured their meeting in Outlook, regardless of which setting is chosen in Outlook in the These people don’t have to wait in the lobby drop-down box.

After some fruitless searching online, I eventually came across the following article, which clarified things for me:

Start an Audio Conference over the phone without a PIN in Skype for Business Online

As a tenant-level configuration, therefore, there is a two-stage process involved to get this reconfigured for existing Skype for Business Online Audio Conferencing deployments:

  • Set the AllowPSTNOnlyMeetingsByDefault setting to true on the tenant via a PowerShell cmdlet.
  • Configure the AllowPSTNONLYMeetingsByDefault setting to true for every user setup for Audio Conferencing, either within the Skype for Business Administration Centre or via PowerShell.

The second process could be incredibly long-winded to achieve via the Administration Centre route, as you have to go into each user’s audio conferencing settings and toggle the appropriate control, as indicated below:

For a significantly larger deployment, this could easily result in carpal tunnel syndrome and loss of sanity 😧. Fortunately, PowerShell can take away some of the woes involved as part of this. By logging into the Skype for Business Online administration centre via this route, it is possible to both enable the AllowPSTNOnlyMeetingsByDefault setting on a tenant level and also for all users who currently have the setting disabled. The complete script to carry out these steps is below:

#Standard login for S4B Online

Import-Module SkypeOnlineConnector
$userCredential = Get-Credential
$sfbSession = New-CsOnlineSession -Credential $userCredential
Import-PSSession $sfbSession

#Login script for MFA enabled accounts

Import-Module SkypeOnlineConnector
$sfbSession = New-CsOnlineSession
Import-PSSession $sfbSession

#Enable dial in without leader at the tenant level - will only apply to new users moving forward

Set-CsOnlineDialInConferencingTenantSettings -AllowPSTNOnlyMeetingsByDefault $true

#Get all current PSTN users

$userIDs = Get-CsOnlineDialInConferencingUserInfo | Where Provider -eq "Microsoft" | Select DisplayName, Identity

$userIDs | ForEach-Object -Process {
    #Then, check whether the AllowPstnOnlyMeetings is false

    $identity = $_.Identity

    $user = Get-CsOnlineDialInConferencingUser -Identity $identity.RawIdentity
    Write-Host $_.DisplayName"AllowPstnOnlyMeetings value equals"$user.AllowPstnOnlyMeetings
    if ($user.AllowPstnOnlyMeetings -eq $false) {
        #If so, then enable

        Set-CsOnlineDialInConferencingUser -Identity $identity.RawIdentity -AllowPSTNOnlyMeetings $true
        Write-Host $_.DisplayName"AllowPstnOnlyMeetings value changed to true!"

    else {
        Write-Host "No action required for user account"$_.DisplayName 

Some notes/comments before you execute it in your environment:

  • You should comment out the appropriate authentication snippet that is not appropriate for your situation, depending on whether you have enabled Multi-Factor Authentication for your user account.
  • Somewhat annoyingly, there is no way (I found) to extract a unique enough identifier that can be used with the Set-CsOnlineDialInConferencingUser cmdlet when obtaining the details of the user via the Get-CsOnlineDialInConferencingUser cmdlet. This is why the script first retrieves the complete LDAP string using the Get-CsOnlineDialInConferencingUserInfo. Convoluted I know, but it ensures that the script can work correctly and avoids any issues that may arise from duplicate Display Names on the Office 365 tenant.

All being well, with very little modification, the above code can be utilised to enforce a setting across the board or for a specific subset of users, if required. It does seem strange that the option is turned off by default, but there are understandable reasons why it may be desirable to curate the whole meeting experience for attendees. If you are considering rolling out Skype for Business Online Audio Conferencing in your Office 365 tenant in the near future, then this represents one of many considerations that you will have to take when it comes to the deployment. You should, therefore, think carefully and consult with your end-users to determine what their preferred setting is; you can then choose to enable/disable the AllowPSTNOnlyMeetingsByDefault setting accordingly.

The very nature of how businesses or organisations operate means that the sheer volume of sensitive or confidential data that can grow over time presents a genuine challenge from a management and security point of view. Tools and applications like cloud storage, email and other information storage services can do great things; but on occasions where these are abused, such as when an employee emails out a list of business contacts to a personal email address, the penalties cannot just be a loss of reputation. Even more so with the introduction of GDPR earlier this year, there is now a clear and present danger that such actions could result in unwelcome scrutiny and also a fine for larger organisations for simply not putting the appropriate technical safeguards in place. Being able to proactively – and straightforwardly – identify & classify information types and enforce some level of control over their dissemination, while not a silver bullet in any respect, does at least demonstrate an adherence to the “appropriate technical controls” principle that GDPR in particular likes to focus on.

Azure Information Protection (AIP) seeks to address these challenges in the modern era by providing system administrators with a toolbox to enforce good internal governance and controls over documents, based on a clear classification system. The solution integrates nicely with Azure and also any on-premise environment, meaning that you don’t necessarily have to migrate your existing workloads into Office 365 to take full advantage of the service. It also offers:

  • Users the ability to track any sent document(s), find out where (and when) they have been read and revoke access at any time.
  • Full integration with the current range of Office 365 desktop clients.
  • The capability to protect non-Office documents, such as PDF’s, and requiring users to open them via a dedicated client, which checks their relevant permissions before granting access.
  • Automation capabilities via PowerShell to bulk label existing document stores, based on parameters such as files names or contents of the data (for example, mark as highly sensitive any document which contains a National Insurance Number).

Overall, I have found AIP to be a sensible and highly intuitive solution, but one that requires careful planning and configuration to realise its benefits fully. Even with this taken for granted, there is no reason why any business/organisation cannot utilise the service successfully.

However, if you are a small to medium size organisation, you may find that the Azure Information Protection offering has traditionally lacked some critical functionality.

You can see what I mean by performing a direct comparison between two flavours of Office 365 deployments – Office Business Premium (“BizPrem”) Office Professional Plus (“ProPlus”). For those who are unaware of the differences:

  • Office Business Premium is the version of Office apps that you can download with a…you guessed it…Office Business Premium subscription. This product/SKU represents the optimal choice if you are dealing with a deployment that contains less than 250 users and you want to fully utilise the whole range of features included on Office 365.
  • Office Professional Plus is the edition bundled with the following, generally more expensive subscriptions:
    • Office 365 Education A1*
    • Office 365 Enterprise E3
    • Office 365 Government G3
    • Office 365 Enterprise E4
    • Office 365 Education A4*
    • Office 365 Government G4
    • Office 365 Enterprise E5
    • Office 365 Education A5*

    For the extra price, you get a range of additional features that may be useful for large-scale IT deployments. This includes, but is not limited to, Shared Computer Activation, support for virtualised environments, group policy support and – as has traditionally been the case – an enhanced experienced while using AIP.

* In fact, these subscriptions will generally be the cheapest going on Office 365, but with the very notable caveat being that you have to be a qualifying education institute to purchase them. So no cheating I’m afraid 🙂

The salient point is that both of these Office versions support the AIP Client, the desktop application that provides the following additional button within your Office applications:

The Protect button will appear on the ribbon of Word, Excel and Outlook.

The above example, taken from an Office Business Premium deployment, differs when compared to Office Professional Plus:

Have you spotted it yet?

As mentioned in the introduction, the ability for users to explicitly set permissions on a per-document basis can be incredibly useful but is one that has been missing entirely from non-Office Business Premium subscriptions. This limitation means that users have lacked the ability to:

  • Specify (and override) the access permissions for the document – Viewer, Reviewer, Co-Author etc.
  • Assign permissions to individual users, domains or distribution/security groups.
  • Define a specified date when all access permissions will expire.

You will still be able to define organisation-level policies that determine how documents can be shared, based on a user-defined label, but you lose a high degree of personal autonomy that the solution can offer users, which – arguably – can be an essential factor in ensuring the success of the AIP deployment.

Well, the good news is, that all of this is about to change, thanks to the September 2018 General Availability wave for Azure Information Protection

This “by design” behaviour has, understandably, been a source of frustration for many, but, thanks to a UserVoice suggestion, is now no longer going to be a concern:

In the coming AIP September GA we will update the Office client requirement with the following:

“Office 365 with Office 2016 apps (minimum version 1805, build 9330.2078) when the user is assigned a license for Azure Rights Management (also known as Azure Information Protection for Office 365)”

This will allow the support of the AIP client to use protection labels in other Office subscriptions which are not ProPlus. This will require the use of Office clients which are newer then the version mentioned above and the end user should be assigned with the proper licence.

The introduction of this change was confirmed by the release of version of the AIP client on Monday this week and is a much welcome new addition to the client. Be aware though of the requirement to be using the May 2018 build of Office 2016 apps to take advantage of this new functionality. Once overcome, this change suddenly makes the AIP offering a lot more powerful for existing small business users and a much easier sell for those who are contemplating adopting the product but cannot tolerate the cost burden associated with an Enterprise subscription. Microsoft is continually endeavouring to ensure a consistent “feedback loop” is provided for all users and customers to offer product improvement suggestions, and it is great to see this working in practice with AIP as our example. Now’s as good as time as any to evaluate AIP if you haven’t before.

Cybersecurity should be an ongoing concern for any organisation, regardless of its size and complexity. This is chiefly for two essential business reasons:

  1. A cybersecurity incident or breach could, depending on its severity, result in significant reputational or financial damage if not adequately safeguarded against or handled correctly.
  2. When judging whether to award a contract to a business for a critical function, the awarding organisation will typically need to assuage themselves of any risk associated with placing this activity “outside the garden fence”. Cybersecurity is one aspect of assessing this risk, usually focused towards understanding what controls, policies and procedures exist within a business to ensure that sensitive data is handled appropriately.

Traditionally, to adequately demonstrate sufficient competence in this area, the ISO 27001 standard acts as a watermark to indicate that proper information security management systems are in place within a business. Many routes are currently available towards achieving this accreditation. Its adoption can involve many complicated and highly integrated business changes which, for smaller organisations, may prove to be a significant challenge to put in place – laying aside any cost implications.

In recognition of this fact and as a general acknowledgement towards the increased risk the “internet age” brings to supplier/customer relationships (particularly in the public sector), the UK Government launched the Cyber Essentials scheme back in June 2014. Aimed at organisations of any size, it promises to provide the necessary help and reassurance that your business/organisation has put the necessary steps in place to ‘…protect…against common online threats’, affording the opportunity to advertise this fact to all and sundry.

I’ve been through the process of successfully attaining the standard within organisations over the past few years, so I wanted to share some of my thoughts relating to the scheme, alongside some tips to help you along the way if you are contemplating adopting the scheme in the near future.

To begin with, I wanted to provide a detailed overview of the scheme, with some reasons why it may be something your organisation should consider.

Cyber Essentials is structured as a tiered scheme, with two certification levels available, which differ significantly in their level of rigorousness:

  • Cyber Essentials: Sometimes referred to as “Cyber Essentials Basic“, this level of the standard is designed to assess your current IT infrastructure and internal processes, via a self-assessment questionnaire. The answers are then reviewed and marked against the standard.
  • Cyber Essentials +: Using the answers provided during the Basic accreditation process, a more thorough assessment is carried out on your network by an external organisation, taking the form of a mini-penetration test of your infrastructure.

You can read in further detail on the scheme’s website regarding each level. It should be noted, even if it may go without saying, that you must be Cyber Essentials Basic accredited before you can apply for the + accreditation. Both tiers of the standard also require renewal annually.

Whether your organisation needs the scheme or not depends on your industry focus and, in particular, your appetite for working within the public sector. As noted on the GOV.UK website:

From 1 October 2014, Government requires all suppliers bidding for contracts involving the handling of certain sensitive and personal information to be certified against the Cyber Essentials scheme.

Its requirement has also spread itself further from there into some areas of the private sector. For example, I have seen tenders/contracts in recent times explicitly asking for Cyber Essentials + as a minimum requirement for any suppliers. In short, you should be giving some thought towards the scheme if you do not have anything existing in place and if you have a desire to complete public sector work in the very near future.

What You Can Expect

The exact process will differ depending on which accreditation body you work with, but the outline process remains the same for both levels of the scheme:

  • For the Basic, you will be asked to complete and return answers to the self-assessment question list. Responses will then be scored based on a Red, Amber, Green (RAG) scoring system, with full justifications for each score provided. Depending on the number and severity of issues involved, an opportunity to implement any required changes and resubmit your answers may be given at no additional cost; otherwise, failure will mean that you will have to apply to complete the questionnaire again for an additional fee. Turnaround for completed responses has been relatively quick in my experience, with the upshot being that you could potentially get the accreditation in place within a few weeks or less. For those who may be worried about the contents of the questionnaire, the good news is that you can download a sample question list at any time to evaluate your organisation’s readiness.
  • As hinted towards already, the + scheme is a lot more involved – and costly – to implement. You will be required to allow an information security consultant access to a representative sample of your IT network (including servers and PC/Mac endpoints), for both internal and external testing. The consultant will need to be given access to your premises to carry out this work, using a vulnerability assessment tool of their choosing. There will also be a requirement to evidence any system or process that you have attested towards as part of the Basic assessment (e.g. if you are using Microsoft Intune for Mobile Device Management, you may be required to export a report listing all supervised devices and demonstrate a currently supervised device). It is almost a certainty that there will be some remedial work that needs to take place resulting from any scan, most likely amounting to the installation of any missing security updates. Previously, you were granted a “reasonable” period to complete these actions; for 2018, the scheme now requires that all corrective actions are completed within 30 days of the on-site assessment taking place. Once this is done and evidenced accordingly, a final report will be sent, noting any additional observations, alongside confirmation of successfully attaining the + accreditation.

Costs will vary, but if you are paying any more than £300 for the Basic or £1,500 + VAT for the + accreditation, then I would suggest you shop around. 🙂

Is it worth it?

As there is a cost associated towards all of this, there will need to a reasonable business justification to warrant this spend. The simple fact that you may now be required to contract with organisations who mandate this standard being in place is all the justification you may need, especially if the contract is of sufficiently high value. Or it could be that you wish to start working within the public sector. In both scenarios, the adoption of the standard seems like a no-brainer option if you can anticipate any work to be worth in excess of £2,000 each year.

Beyond this, when judging the value of something, it is often best to consider the impact or positive change that it can bring to the table. Indeed, in my experience, I have been able to drive forward significant IT infrastructure investments off the back of adopting the scheme. Which is great…but not so much from a cost standpoint. You, therefore, need to think carefully, based on what the standard is looking for, on any additional investment required to ensure compliance towards it. For example, if your organisation currently does not have Multi-Factor Authentication in place for all users, you will need to look at the license and time costs involved in rolling this out as part of your Cyber Essentials project. As mentioned already, ignorance is not an excuse, given that all questions are freely available for review, so you should ensure that this exercise is carried out before putting any money on the table.

The steps involved as part of the + assessment are, arguably, the best aspects of the scheme, given that you are getting an invaluable external perspective and vulnerability assessment at a rather healthy price point. Based on what I have witnessed, though, it would be good if this side of things was a little more in-depth, with additional auditing of answers from the Basic assessment, as I do feel that the scheme could be open to abuse as a consequence.

A Few Additional Pointers

  • The questions on the Basic self-assessment will generally be structured so that you can make a reasonable guess as to what the “right” answer should be. It is essential that the answers you give are reflective of current circumstances, especially if you wish to go for the + accreditation. If you find yourself lacking in specific areas, then go away and implement the necessary changes before submitting a completed self-assessment.
  • Regular patching cycles are a key theme that crop up throughout Cyber Essentials, so as a minimum step, I would highly recommend that you implement the required processes to address this in advance of any + assessment. It will save you some running around as a consequence.
  • Both assessments are also testing to ensure that you have a sufficiently robust Antivirus solution in place, particularly one that is automated to push out definition updates and – ideally – client updates when required. You should speak to your AV vendor before carrying out any Cyber Essentials assessment to verify that it supports this functionality, as it does help significantly in completing both the Basic and + assessment.
  • An obligatory Microsoft plug here, but a lot of what is available on Office 365 can add significant value when looking at Cyber Essentials:
    • Multi-Factor Authentication, as already discussed, will be needed for your user accounts.
    • Exchange Advanced Threat Protection is particularly useful during the + assessment in providing validation that your organisation protects against malicious file attachments.
    • Last but not least, a Microsoft 365 subscription facilitates a range of benefits, including, but not limited, the latest available version of a Windows operating system, BitLocker drive encryption and policy management features.

If you are currently looking for assistance adopting the scheme, then please feel free to contact me, and I would be happy to discuss how to assist you towards attaining the standard.

If you are heavily involved with the management and deployment of Office 365 Click-to-Run installation packages on a daily basis, the chances are that you have come across all sorts of weird and wonderful error messages throughout your travels. Although I am admittedly a novice in this area, I know there is oft the requirement to resort to registry modifications or similar to achieve certain kinds of management tasks, along with a whole list of other quirks that can test the patience of even the most ardent of IT professionals and frustrate what may appear to be simplistic Office 365 deployments.

Case in point – the installation of the downloadable Click-to-Run Office 365 installation package (available from the Office 365 portal) can be complicated when installing it via the default Administrator account on a Windows machine. When attempting to do this, either by double-clicking the executable file or executing it using Run as administrator privileges, you may get the following error message displayed below:

The error can occur in any version of Windows, up to and including Windows 10 1803 Build. The issue appears to pertain to the default Administrator account that is created on the operating system and can be observed occurring when creating a new Windows 10 Virtual Machine on Azure. It’s possible that the error may also occur in desktop versions of the operating system, depending on how the initial local administrator user account is deployed. There are a couple of ways to resolve this error, depending on your preferred method, familiarity with working with the inner engines of Windows and your inclination towards either a quick or “proper” solution.

The quick and easy solution

This route involves the creation of a new user account on the machine, which can then be logged into and used to install the application via User Account Control elevated privileges. The steps to achieve this are as follows:

  1. Type Windows + R on the start menu to open the Run box.
  2. Enter lusrmgr.msc in the Run box and hit enter. This will open the Local Users and Groups Microsoft Management Console (MMC) snap-in.
  3. Right-click on the Users folder and select New User
  4. Create a new user account with the required details and password. Ensure that the account is not disabled via the Account is disabled button and click Create to…well…create the account. 🙂
  5. Log out of Windows and log back in as the new user. When attempting to run the installation package again, you should be (correctly) prompted to enter Administrator credentials via the UAC control dialog and the installation should start successfully.

The proper solution

Although the above steps are perfectly acceptable and straightforward to follow if you are in a rush, they do not address the underlying problem with the default Administrator account – namely, that it will have issues installing any application that requires elevated privileges. In most cases, where an application requires installation onto a machine, it is generally better to login as the Administrator user account as opposed to relying solely on the UAC elevation prompt. As a consequence, the most ideal solution to save you from any future hassle is to fix the issue with the default Administrator account permanently.

Following some research online and testing on my side, I found this article which goes through the steps that will successfully address the problem and enable you to install Office 365 – and any other program – without issue. In my specific example, I had to follow the instructions listed in Method 2 and 3, followed by a restart of the machine in question, before I was able to install Office 365 successfully. Although the steps involved are a little more complex and error-prone, the article does provide clear instructions, along with screenshots, to help you along the way.

Conclusions or Wot I Think

I recently attended a Microsoft Partner training day covering Microsoft 365 Business and Enterprise and the topic of Office 365 came up regularly, as you can imagine. The deployment settings afforded to you via Microsoft 365 let you perform automated actions in a pinch, with perhaps the most common one being the removal of any local administrator privileges when a new machine is deployed using your organisation’s chosen template. As our instructor pointed out, this is incompatible with how Office 365 installations operate; because, as we have seen, full administrative privileges are required to install the software. We, therefore, find ourselves in this strange state of affairs where the Microsoft 365 solution as a whole is in a glass half full (or half empty, if you are feeling pessimistic) situation and, more generally, Office 365 deployments are hampered due to requiring local or domain level Administrator privileges. I would hope that, eventually, Microsoft would look to providing an installation package of Office that does not require such extensive permissions to install. Doing this would kill two birds with one stone – it would help to make the deployment of all the components of Microsoft 365 a breeze whilst also avoiding the error message discussed in this post. Here’s hoping that we see this change in the future to avoid interesting little side-journeys like this when deploying Office 365.

PowerApps is very much the in vogue topic at the moment, particularly if you are a Dynamics 365 Customer Engagement professional reconciling yourself with the new state of affairs. The previous sentence may sound negative but is very much contrary to my opinion on PowerApps, which I am finding increased use cases for each day when working to address certain business requirements. Whether you are looking to implement a barcode scanning application or something much more expansive, the set of tools that PowerApps provides from the outset means that traditional developers can very easily achieve solutions that would previously take Visual Studio and a whole breadth of programming knowledge to realise.

On the topic of developers, one thing that they may have to assuage themselves with when working with PowerApps is the inability to display dialog messages within the app when some kind of alert needs to be provided to the user. A typical scenario for this could be to request that the user completes all fields on a form before moving to the next screen, ensuring that an appropriate message is displayed reflecting this fact. Whilst there is no current way of achieving this via a dedicated pop-up control or similar, there are ways that this behaviour can be imitated using existing Label controls and a bit of function wizardry.

The best way to illustrating how to accomplish this is to view an example PowerApps app. Below are screenshots of a very simple two-screen app, with several Text Inputs, a Button and Label control:

The required functionality of the app is to allow navigation to the ‘Thanks for your submission!’ screen only if the user has entered data into all of the Text Input controls on the first screen; if this condition is not met, then the user should be prevented from moving to the next screen and an error message should be displayed to advise the user accordingly.

The first step is to create the error message and required text on the first screen. This can be straightforwardly achieved via an additional Label control, with some text formatting and colour changes to make it noticeable to the user.

As with many other controls within PowerApps, you have the ability to toggle the visibility of Labels either on a consistent or variable basis. The Visible property is your go-to destination for this and, as the next step, the value of this field should be updated to read ErrorVisible – the name of a variable storing the state of the controls visibility (either true or false). If done correctly, as indicated in the screenshot below, you will notice that the Label control will immediately disappear from the screen on the right. This is because the default value of the newly specified variable is false.

The next step involves the invocation of a somewhat complex PowerApps function to implement the required logic on the Button control. The entire function to use is reproduced below in its entirety:

If(Or(IsBlank(TextInput1.Text),IsBlank(TextInput2.Text),IsBlank(TextInput3.Text),IsBlank(TextInput4.Text)), Set(ErrorVisible, true), Navigate(Screen2,ScreenTransition.Fade))

To break the above down for those who are unfamiliar with working with functions:

  • IsBlank does exactly what it says on the tin, but it’s important to emphasise that to check whether a field contains a value or not, you have to specify the Text property of the control.
  • The Set function enables us to specify the values of variables on the fly, whether they have been declared already or not somewhere else on the app. No additional syntax is required, making it very straightforward to create runtime variables that store values throughout an entire app session.
  • Navigate specifies any other screen on the app to open. We can also select a transition effect to use which, in this case, is the Fade transition.
  • Finally, all of the above is wrapped around an If logic statement that prevents the user from moving to the next screen if any of the Text Input controls do not contain a value (courtesy of the Or statement).

The function needs to be entered within the OnSelect property of the button control, and your form should resemble the below if done correctly:

With everything configured, its time to give the app a test drive. 🙂 The sequence below provides a demonstration of how the app should work if all of the above steps are followed:

A final, potentially optional step (depending on what your app is doing), is to ensure that the error message is hidden as soon as the user navigates away from the 1st screen. This can be achieved by updating the ErrorVisible variable back to false as soon as the user navigates onto the second screen, as indicated in the screenshot below:

Conclusions or Wot I Think

PowerApps is still very much a product in its infancy, very neatly fitting into the new wave of Microsoft products with regular release cycles, feature updates and ongoing development. It can be, therefore, unrealistic to expect a full range of features which satisfy all business scenarios to be available at this juncture. Having said that, one feature that could be added to greatly benefit data entry into forms is the ability to display pop-out dialog messages, depending on field requirement levels or other conditional logic. The key benefit of this would be the need not to resort to complex functions to achieve this functionality and to, instead, allow error messages or alerts to be configured via the PowerApps GUI. A similar comparison can perhaps be made with Business Rules in Dynamics 365 Customer Engagement. Before their introduction, developers would have to resort to JScript functions to display form-level alerts based on conditional logic. Not everyone is familiar with JScript, meaning a significant barrier was in place for those looking to implement arguably straightforward business logic. Now, with Business Rules, we have the ability to replicate a lot of functionality that JScript allows for, speeding up the time it takes to implement solutions and providing a much clearer mechanism of implementing straightforward business logic. Hopefully, in the months ahead, we can start to see a similar type of feature introduced within PowerApps to aid in developing a similar solution demonstrated in this post.