Sender Session - View a Particular Package

HEllo , can you tell me how to open url of particular pakchage using rest api and for another user as delegates. Thanks

If you have a sender authentication token, you can use it in a URL like the one below to open a sender session for a particular package:

https://sandbox.esignlive.com/auth?senderAuthenticationToken={YOUR_SENDER_AUTH_TOKEN}&target=https%3a%2f%2fsandbox.esignlive.com%2fdesigner%2f{PACKAGE_ID}

For the "target" parameter, you'll see that the package ID is also needed. Furthermore, you can go to a particular document by adjusting the target url to point to the particular document in the package. Hope this helps. For the delegate question, you're wanting to open a sender session to a sender's session for someone else with delegate access?