Firebase Cloud Functions Firestore Trigger produces: Error: 7 PERMISSION_DENIED: Missing or insufficient permissions

Question

I\'m trying to use a Firebase Cloud Function to update a document within my Firestore database, when one of my documents has been updated using a trigger. The trigger is cal

Answer 1

I had the same exact problem with Cloud Functions. My issue was not solved by deleting/redeploying the function. It turns out that, when my project was provisioned, the IAM roles for the default service account were not added. I had to add an Editor role in the IAM Admin panel for @appspot.gserviceaccount.com.