With the release of REST API Version 6 providing the best programming experience for Adobe Sign developers, the SOAP API has been deprecated and will not be supported past February 2021. The REST API is now the preferred interface to integrators and application developers and future development should move to this API.
Here are some references to help with the transition:
- Migrating from SOAP
- Adobe Sign REST API Version 6 Methods
ACTION REQUIRED
If you have developed an integration or application to the Adobe Sign service based on the SOAP API you will have to rewrite your application using at least REST API Version 6 prior to February 2021. Direct communications to developers and integrators will occur over the next several quarters to insure a smooth transition to the latest API.