Other attachment to workflow

[mrpowergage]

I’m struggling with attaching a file to an email workflow.

I’m using a formula to define the file I want to sent. I have a column called documents, which has the link to the document attached to the record I’m sending. The formula I’m using is simply [documents].

When I look in the log I have a blank result:
“EmailOtherAttachments”: “”,

The document links fine in the body of the email (copied below). What am I doing wrong? Thanks for any help.

Client:	jm8483fjd
Decision:	test1234
Date:	24/03/2019
Discussed with Client:	Y
Why not:
Involved:
Notes:
Documents:	t66y4RKS.Documents.0621

[Phil]

I can investigate if you provide:

1. Your account id
2. The app name
3. The workflow rule name
4. The exact date and time of the failure in Audit History