For the past few weeks, when users submit a custom PowerApps form bound to a SharePoint list, data entered doesn't appear when you open the form and may or may not not show up on the list. Email notifications sent through a flow show all the correct information. Documents attached to the form also don't come through. In PowerApps, some of the fields (though not all, I believe), showed an error: "data source supplied to the function is invalid." Editing, saving, and publishing the form seemed to fix that very briefly, and then it reverted. It also didn't help when I removed the attachments field, saved, published, then added back in, saved, and published.
Thanks, @Drrickryp . Will this mean rebuilding the form--organizing fields, re-adding conditional formatting, etc.? Just don't want to scrap what I have unnecessarily....
Not at all. When you remove the datasources, everything will error but you can ignore that. Don't worry, everything (forms, galleries, controls, etc. ) will reconnect once you add the datasources back.
I had a similar problem due to the datasource links becoming corrupt intermittently(unsure why). Deleting and re-adding the datasource resolved the issue permanently so far, but save yourself the time of recreating your entire app by following the below:
After you delete the original datasource, make sure when you add your new datasource back into the app that you give it the same name as the original datasource so all of the pointers/links automatically reconnect. If you change the name of the new datasource (often the default names will add or append _x integer values to the end of given names i.e. DataTable becomes DataTable_1) then the pointers will be broken and you will have to edit each property that uses the original datasource name. I have deleted an existing datasource, re-added it and then modified the 'appended' name to match the original name, without having to update any existing fields that referenced the original datasource name. I hope this saves you some time.
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