Custom form intermittently showing error

[Morghan]

Hello,

I have a custom form built via PowerApps in a SP List and it intermittently displays the following error when hitting "New." I can hit the "x" to close it and everything works fine, it's just alarming to users who have never seen it before. Why is this popping up?? "The requested operation is invalid. Server Response: Item does not exist. It may have been deleted by another user."

I have tried completely deleting the custom form and rebuilding again. I am using a Create form, an Edit form and a View form, all using the following formulas in the "SharePointIntegration" section (source: https://powerapps.microsoft.com/en-us/blog/separate-custom-forms/) --

OnNew – Set(SharePointFormMode, "CreateForm"); NewForm(CreateItemForm); Navigate(CreateScreen, ScreenTransition.None)

OnEdit – Set(SharePointFormMode, "EditForm"); EditForm(EditItemForm); Navigate(EditScreen, ScreenTransition.None)

OnView – Set(SharePointFormMode, "ShowForm"); ViewForm(ShowItemForm); Navigate(ShowScreen, ScreenTransition.None)

OnSave – If(SharePointFormMode="CreateForm", SubmitForm(CreateItemForm), If(SharePointFormMode="EditForm", SubmitForm(EditItemForm)))

OnCancel – If(SharePointFormMode="CreateForm", ResetForm(CreateItemForm), If(SharePointFormMode="EditForm", ResetForm(EditItemForm)))

Is it possibly something with these formulas that are causing the error?? I cannot pinpoint what's going on. It's very intermittent. I have also turned off this option below which I've been advised may help, no avail: 

[v-xida-msft · Accepted solution]

Hi @Morghan ,

Based on the issue that you mentioned, I have made a test on my side, and don't have the issue that you mentioned.

Please consider modify your formula as below:

OnNew :

Refresh('YourSPList'); // Add this formula
Set(SharePointFormMode, "CreateForm");
NewForm(CreateItemForm);
Navigate(CreateScreen, ScreenTransition.None)

OnEdit:

Refresh('YourSPList');  // Add this formula
Set(SharePointFormMode, "EditForm");
EditForm(EditItemForm);
Navigate(EditScreen, ScreenTransition.None)

OnView:

Refresh('YourSPList'); // Add this formula
Set(SharePointFormMode, "ShowForm");
ViewForm(ShowItemForm);
Navigate(ShowScreen, ScreenTransition.None)

In addition, please also check if you have specified other formulas in your app, e.g. Patch function, to do some CRUD opeation to your SP List data source.

Also please consider take a try to turn on the "Formula-leave error managments" option within "Advanced settings" of App settings of your app, then re-publish your app, check if the issue is fixed.

Please consider take a try with above solution, then check if the issue is solved.

Best regards,

[Morghan]

Good morning,

Thank you for the prompt response and assistance! I have not been able to replicate that issue since turning on the "Formula-leave error" option you mentioned. Thanks again! 

Morghan