We use v2 API as well and like rblatz said, we haven't ran into any problems. Our backend signs in to DocuSign as the main account. When a particular event re

We use v2 API as well and like rblatz said, we haven't ran into any problems. Our backend signs in to DocuSign as the main account. When a particular event requires it, the backend sends a POST to DocuSign and creates an envelope. In this POST request, we tell DocuSign that the user is going to be an embedded user. Once the envelope is created, we can ask for the "view url". In this request, we not only tell DocuSign to get us the vie URL for a specific signer (in case there are multiple signers), but we also tell DocuSign where we want the user to be redirected to after they are done signing. When this request returns, we will have a URL that we can redirect our end user to. Also, in terms of their documentation, I think it is fantastic in it thoroughness. All in all, I've had the opposite experience of OP.