title: PowerApps customize form - unable to submit data to Sharepoint list: There was a problem saving your changes. Data source may be invalid
body: <p>I am a no voice in PowerApps and have been developing a custom form from the SharePoint list. I am unable to save the form data from SharePoint list through Powerapp form, I am able to save data from Powerapp tool to SharePoint list though.</p>
  
  <p>I have tried refreshing the SP list, form by removing the powerapp form option in Form settings and adding back the powerapp form multiple times. Still no luck! Also verified if the list had any mandatory columns to be filled, but none.</p>
  
  <p><a href="https://i.stack.imgur.com/YeVxY.png" rel="nofollow noreferrer">On click of save/submit error message is notified - Data Source may be invalid</a></p>
  
  <p>Since I am unable to debug the Powerapp form, I do not understand the exact issue. Please help me with this. Thanks.</p>