At the end of the month – anyone using Adobe Sign (EchoSign) will be cut off from the API if they’re using any type of outdated authentication that sends the username and password in the request header – commonly used in the SOAP API.

Lately I have completed an upgrade incorporating the latest V6 Adobe Sign REST api using PHP, and incorporating Oauth into that.

There are various aspects to this, including with/without user login with Adobe – as I my case, there are no requirements for customer registration, just to send out forms and track their status.

Will be updating this post with a tutorial, however currently developers can check out the GitHub repo here: https://github.com/edmunds22/adobe-sign-php