Hey @mavridisp,
I have a question: Does that mean users basically fill out the same form again (Using same EMail) and then you want your googlesheet also to update?
Let me know. I think we can easily solve this.
Hey @mavridispn
You need to create a new zap where you would need to select webhook as a trigger, this webhook link has to be set on formidable form update event, so whenever a form is updated it will trigger the zap and it will send the form data to zap.
After this, you need to select an action event "Lookup Spreadsheet Row" in google sheets, here on the basis of a unique field (like form id or email) you need to find the existing row and then set another action "Update Spreadsheet Row" in google sheets which will use this row-id to update this specific row.