Manage the Approvals app in Microsoft Teams

In the left pane of the Teams admin center, go to Teams apps > Manage apps. Search for the Approvals app, and then select it. Go to the Settings tab, and then do one or more of the following: To enable or disable Adobe Sign, switch the toggle to On or Off. To enable or disable DocuSign, switch the toggle to On or Off.

https://learn.microsoft.com/en-us/microsoftteams/approval-admin