I am using SOAP based API calls to create DocuSign envelopes. I am using legacy authentication method in which I pass the userid and password of the DocuSign user that I want to create envelopes with. If I want to use the new authentication method - oAuth Authorization code grant, do I have to use the REST based API calls from DocuSign?
I could not find a way to include the access token in the authentication header that I am using in the legacy authentication method.
Please advise,
Thanks,
Minal