DocuSign is deprecating its basic authentication methods:
Legacy Authentication and Send-On-Behalf-Of (SOBO).
These authentication methods are currently available with the integration of Nintex DocGen for Salesforce and DocuSign for Salesforce (DocuSign’s Legacy Salesforce app). These authentication methods will be deprecated on January 31st, 2025.
To continue using this DocuSign (Legacy) integration in Nintex DocGen for Salesforce, you must switch to one of the following authentication methods:
OAuth—Individual Consent or OAuth—Admin Consent.
This article covers OAuth-Individual Consent. 
Experience a seamless, step-by-step journey, with every detail perfectly tailored to guide both you and your end users to success.
If you have already integrated Nintex DocGen for Salesforce with the new DocuSign Apps Launcher, this does not apply to you. However, both the DocuSign Apps Launcher and DocuSign (Legacy) integrations can be run side-by-side as you migrate each package over at your own speed.
This video covers:
- Upgrade process for Nintex DocGen for Salesforce.
- Review of needed DocuSign user requirements.
- Integration setup in Nintex DocGen for Salesforce.
After you have watched the video, the links below may be helpful:
- Sandbox - Upgrade Nintex DocGen for Salesforce to 18.10
- Production - Upgrade Nintex DocGen for Salesforce to 18.10
