Hi @slan2018 ,
Based on the issue that you mentioned, I have made a test on my side, and don't have the issue that you mentioned.
Based on the error that you mentioned, I think there is something wrong with the SP List connection in your app. Please consider remove the SP List connection within your app, then re-create a new connection to your SP List data source, try your app again, check if the issue is fixed.
In addition, please also consider re-generate a new app based on your SP List data source, then try your app again, check if the issue is solved.
More details about generating an app based on SP List data source, please check the following article:
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/app-from-sharepoint
If the issue still exists, please consider submit your form data using Patch function instead of SubmitForm function. The standard formula format of Patch function as below:
Patch(
'YourSPList',
Defaults('YourSPList'),
{
Title: DataCardValue_Title.Text,
'Sales Rep Name': DataCardValue_SalesRepName.Text,
'Date Proposal Request Submitted': DatePicker1.SelectedDate,
'Amount of Setup Fee': DataCardValue_AmountOfSetupFee.Text,
...
...
}
)
More details about Patch function, please check the following article:
Patch function
In addition, if you want to open a specific form via clicking a URL, please check if my response within the following thread would help in your scenario:
https://powerusers.microsoft.com/t5/Creating-Apps/Connecting-lists-and-having-all-information-in-one-row/m-p/310210#M11119
https://powerusers.microsoft.com/t5/General-Discussion/Editing-a-record-from-a-flow-powerapp/m-p/265416
Please take a try with above solution, check if the issue is solved.
Best regards,
