We have an EchoSign account with lots of documents in it. We now need to retrieve the documents from another application and would like to use the SOAP or REST API for it. I have an API key and managed to get the SOAP API working. Unfortunately I did not find a way do retrieve documents by their name? The creator of the documents did not provide an externalID. Is it possible to add externalID to existing documents (e.g. set the externalID to the name)?
I got some responses on this issue from Adobe support: