I've looked on the Yodlee website but I can't see any documentation on how best to do test and development.
We have been allocated a private sandbox for testing but the API does not allow adding users. There doesn't seem a way to add them either so it seems pretty pointless.
I registered on the developer portal and got our code working with the test users generated there but this expired after 30 days so is not a viable option for continued testing.
Is there a way to add users to the private sandbox?
If you have been allocated a private sandbox for testing they you can use register3 API to add test users and then continue with your testing.