MicrosoftStill having the same issue here!
My IT team was able to update this form due to their higher level of credentials. Not sure if that helps!
Forms that are associated with a SharePoint group can be updated by owners of the SharePoint group. I am set as an owner in the group and I have had no issues updating the forms.
Then you are a lucky person, the rest of us Froms/Group owners cannot update our Forms. I wound up copying my forms in the group and updated my workflows (I don't trust the spreadsheet so I send mall my data to SharePoint lists via Power Automate). Pain in the butt.
TBrockTROCit's good to hear that you haven't had any issues. But others, myself included, are having problems updating the Forms. Even though we are listed as an Owner in the SharePoint group, we still get this message after trying to update:
To continue syncing new responses, the owner of this Form must update this workbook soon.
