Unable to Access FeatheryDocument – Invalid Variable Error

Hi Feathery Support,

I’m encountering an issue when trying to use {{FeatheryDocument:Signature1}} in a request body. I’m attempting to pass the document link as part of the request, but I receive the following error:

“The request body contains invalid variables.”

Here’s a screenshot of the error:

Could you please advise if this is the correct way to reference generated url?

Thank you