As of April 2022, Mitratech has become aware of changes in DocuSign authentication protocols being implemented later this year. This includes all REST non-OAuth 2.0 authentication flows and legacy SOAP username password flows. You can read more about it here - October 2022: OAuth 2.0 required for all DocuSign API applications. DocuSign recommends modifying existing code and following the documentation under OAuth 2.0 requirements and migration on their Developer Center to transition to OAuth or other approved authentication methods.
While there are no official integrations that Mitratech supports with DocuSign and TeamConnect, we do know some customers and partners have integrated TeamConnect to DocuSign. We therefore recommend that you review any custom integrations for impact by this action from DocuSign.