It appears that it is possible to generate an envelope using a template that does not belong to the account that was authenticated in the REST call. The two accounts were completely unrelated. Access to the generated envelope is limited to the account that generated the envelope; however the access to the template seems to be allowed to any account.
Scenario where this behavior was noticed: - Account 1 - Created Template #1 - Account 2 - Generate an envelope using Template ID generated by Account 1
I could not find documentation or configuration related to behavior.
I need to confirm if the behavior is intended/supported before we plan to utilize the functionality.
Probably your best solution if you want to use Templates from one account in another is to simply move them. You might only be able to do this in the classic UI so you might have to switch back through your preferences, but you can:
As mentioned you might have to switch back to the classic UI to download/upload, but you definitely will not be able to use Templates from one account when you are an un-authenticated user in another account.