Showing results for 
Search instead for 
Did you mean: 
Helper I
Helper I

Edit Power Apps Custom Form Overwrites Variable; Can a Context Variable be locked?

I have a SharePoint list that creates a custom unique product ID that increments on every new task.  If a person goes to edit the entry, the field with the value that it uses to calculate increments gets overwritten to blank.  I know this is because that field is set to show the value of the context variable, and when you hit edit on the form, it's clears it because it's a variable and you only need to generate the ID through the button once.  (Hope this makes sense...)  My question is, once a variable is calculated, is there a way to lock that value in the field or in another field so that it won't change every time an item is edited?  Disabling the field when a value is present doesn't work (tried that).

New Member

Hello @videnoir83. Question. The value which you use to calculate... is the one coming from a Dropdown/Combobox? Maybe you can give us some more details or a screenshot of the field which turns blank.

Super User
Super User

Hi @videnoir83 ,


I'm not sure how things are setup, but I assume you are trying to generate value based on some record count or something.


If you can try to use, 


   //Perform Calculation


This will only perform calculation if ProductID is blank else it will ignore

Hope this helps

Basically, I have two columns in the SharePoint list. One called Product ID and one called Product ID Number.


In my Power App, when you hit a button the button runs functions to check for the max last value in the Product ID Number Column.  Then it adds 1 to the number and generates a unique value for the Product ID by concatenating the name of our office with that value and the fiscal year (e.g. OFFICE-0001-23, OFFICE-0002-23).


Once that is done the user saves via Submit Form, and the values populate in their respective columns; however, when you select the item, and hit Edit to update it, it removes the value in Product ID Number, therefore not allowing for incrementation to continue.  It is doing this because that field in the app is set to the name of the context variable for that value, so it's thinking upon editing, oh the context variable hasn't been initiated so the value of the field should be blank and therefore overrides the value.  I would like to be able to say, once you've pressed the button and generated the Product ID and Product ID Number, stop and freeze that value in the Product ID Number column.

Found this in the help documentation:


"A context variable holds its value until the app is closed. If you define a context variable and set its value on a particular screen, that information remains intact even if the user switches to a different screen. Once the app is closed, the context variable's value will be lost and must be recreated when the app is loaded again."


I need it to hold it's value.

Hi @videnoir83 ,


When you are updating the Value of ProductID, as you said it takes the context variable data.

You can try the following:


You can set the context variable data based on the Form mode,

  Form1.Mode = FormMode.New, 
  //Perform Calculation of new ID,


As when you use

NewForm(Form1) then form sets to save New Record in database

When you use, EditForm(Form1), the form sets to Edit mode meaning you are updating existing record.




Hope this helps


Can someone provide an example piece of code for SharePointIntegration On Edit, edit form and set variable?


I have EditForm(Form2); Set(varID,......), but that doesn't seem to work, I think because I have it as two separate actions as opposed to something like, EditForm(Set(varID.........)Form2)?

Hi @videnoir83 ,

Firstly, SharePoint integrated forms have the fundamental flaw that unless you refresh SharePoint (refresh the browser) when changing to another record, the form is actually still open (RequestHide() does just that) and it does not run (among other things) App OnStart or Screen OnVisible. I have also found trying to set Variables on the integrated controls you mention inconsistent at best.

The only value I have found can be reliably regarded as updated is SharePointIntegraton.Selected.

But back to your fundamental question - Variables only exist while the app is being run, but I do not think that is actually what you want here (so why bother setting it in the first place) , rather simply do what @Ethan_R has suggested and set the Default of the field to your calculation when the Form is in New Mode.

Helpful resources


Super User of the Month | Drew Poggemann

As part of a new monthly feature in the Community, we are excited to share that Drew Poggemann is our featured Super User for the month of February 2024. If you've been in the Community for a while, we're sure Drew's name is familiar to you, as he is one of our most active contributors--he's been a Super User for five consecutive seasons!   Since authoring his first reply 5 years ago to his 514th solution authored, Drew has helped countless Community members with his insights and expertise. In addition to being a Super User, Drew is also a User Group leader and a Microsoft MVP. His contributions to our Super User sessions and to the new SUIT program are always welcome--as well as his sense of humor and fun-loving way of sharing what he knows with others.   When Drew is not solving problems and authoring solutions, he's busy overseeing the Solution Architecture team at HBS, specializing in application architecture and business solution strategy--something he's been doing for over 30 years. We are grateful for Drew and the amazing way he has used his talent and skills to help so many others in the Community. If you are part of the SUIT program, you got to hear some great tips from Drew at the first SUIT session--and we know he still has much more to share!You can find him in the Community and on LinkedIn. Thank you for all you do, Drew!

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Our team will be reviewing posts using the new "Copilot Studio" label to ensure we highlight and amplify the most relevant and recent content, so you're assured of high-quality content every time you visit. If you share a post that gets featured in the curated gallery, you'll get a PM in the Community to let you know!The curated gallery is ready for you to experience now, so visit the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community. We can't wait to see what you "cook" up!      

Celebrating a New Season of Super Users with Charles Lamanna, CVP Microsoft Business Applications

February 8 was the kickoff to the 2024 Season One Super User program for Power Platform Communities, and we are thrilled to welcome back so many returning Super Users--as well as so many brand new Super Users who started their journey last fall. Our Community Super Users are the true heroes, answering questions, providing solutions, filtering spam, and so much more. The impact they make on the Communities each day is significant, and we wanted to do something special to welcome them at our first kickoff meeting of the year.   Charles Lamanna, Microsoft CVP of Business Applications, has stressed frequently how valuable our Community is to the growth and potential of Power Platform, and we are honored to share this message from him to our 2024 Season One Super Users--as well as anyone who might be interested in joining this elite group of Community members.     If you want to know more about Super Users, check out these posts for more information today:    Power Apps: What is A Super User? - Power Platform CommunityPower Automate: What is A Super User? - Power Platform Community Copilot Studio: What is A Super User? - Power Platform Community Power Pages: What is A Super User? - Power Platform Community

February 2024 User Group Update: Welcoming New Groups and Highlighting Upcoming Events

It's a new month and a brand-new year, which means another opportunity to celebrate our amazing User Groups!Each month, we highlight the new User Groups that have joined the community. It's been a busy season for new groups, because we are thrilled to welcome 15 New User Groups! Take a look at the list below, shared by the different community categories. If your group is listed here, give this post a kudo so we can celebrate with you!   We love our User Groups and the difference they make in the lives of our Community! Thank you to all the new User Groups, new User Group leaders--we look forward to hearing about your successes and the impact you will leave!   In addition to our monthly New User Group spotlight, it's a great time to share some of the latest events happening in our User Group community! Take a look at the list below to find one that fits your schedule and need! There's a great combination of in-person and virtual events to choose from. It's a great time of year to connect and engage with User Groups both locally and online. Please Welcome Our NEW User Groups   Power Platform: Heathcare Power Platform User Group Power Platform Connect Hub Power Platform Usergroup Denmark Mexico Norte- Power Platform User Group Pune Power User Group Sudbury Power Platform User GroupMicrosoft User Group GhanaMPPBLR - Microsoft Power Platform Bengaluru User Group Power Apps:   Myrtle Beach Power Platform User GroupAnanseTechWB PowerApps Copilot Studio: Pathfinders Power Platform Community Dynamics365: Cairo, Egypt MSD 365 Business Central/NAV/F&O User GruopMS Dynamics 365 Business Central LatamCincinnati OH D365 F&O User Group February User Group Events February 2024 Cleveland Power Platform User GroupPortallunsj - Februar 2024Indiana D365/AX February User Group MeetingQ1 2024 KC Power Platform and Dynamics 365 CRM Users Group 

Super Users 2024 Season One is Here!

   We are excited to announce the first season of our 2024 Super Users is here! Our kickoff to the new year welcomes many returning Super Users and several new faces, and it's always exciting to see the impact these incredible individuals will have on the Community in 2024! We are so grateful for the daily difference they make in the Community already and know they will keep staying engaged and excited for all that will happen this year.   How to Spot a Super User in the Community:Have you ever written a post or asked for help in the Community and had it answered by a user with the Super User icon next to their name? It means you have found the actual, real-life superheroes of the Power Platform Community! Super Users are our heroes because of the way they consistently make a difference in the Community. Our amazing Super Users help keep the Community a safe place by flagging spam and letting the Community Managers know about issues. They also make the Community a great place to find answers, because they are often the first to offer solutions and get clarity on questions. Finally, Super Users share valuable insights on ways to keep the Community growing, engaging, and looking ahead!We are honored to reveal the new badges for this season of Super Users! Congratulations to all the new and returning Super Users!     To better answer the question "What is a Super User?" please check out this article: Power Apps: What is A Super User? - Power Platform CommunityPower Automate: What is A Super User? - Power Platform Community Copilot Studio: What is A Super User? - Power Platform Community Power Pages: What is A Super User? - Power Platform Community

Did You Attend the Microsoft Power Platform Conference in 2022 or 2023? Claim Your Badge Today!

If you were one of the thousands of people who joined us at the first #MPPC Microsoft Power Platform Conference in 2022 in Orlando--or attended the second-annual conference in Las Vegas in 2023--we are excited to honor you with a special community badge! Show your support for #MPPC Microsoft Power Platform Conference this year by claiming your badge!         Just follow this link to claim your badge for attending #MPPC in 2022 and/or 2023: MPPCBadgeRequest    Want to earn your badge for 2024? Just keep watching our News & Announcements for the latest updates on #MPPC24.

Top Solution Authors
Top Kudoed Authors
Users online (5,313)