I've seen some posts regarding this same issue, but no recent workable solutions so I'm posting again. This automation hasn't run for a few weeks (since June 😎 and no changes were made but it's no longer working. The step failing is sending an email. I get a message: "An attachment url is disallowed". The entire automation goes like this:
1. When X form is submitted (including Z attachment)
2. Find record (where record ID matches record ID)
3. Send an email to Y email address with Z attachment (from X form submission). File format is pdf if that matters
Steps 1 and 2 run just fine...it's step 3 that throws the "An attachment URL is disallowed" message.
Nothing has changed to the automation or the file format.
What I do notice is a change in the URL of the attachment.
This is the URL (incomplete) of an attachment when it was working on June 8. The root of the URL was cdn.filestackcontent.com
This is the URL of the attachment uploaded in the failed attempt. The URL room is airtable-attachment-uploads-production.s3.amazonaws.com
Any insight into the source of the problem/the solution would be great.
I came across this community post along the way but it doesn't seem to answer the question here.
Thanks!
Tania