Hi All,
We have heard your frustrations and reviewed our options to continue supporting our customers for this endpoint late yesterday. After discussions and thought from the team, we have found a way to re-enable /api/source/loadAccounts for an additional two weeks to give our customers more time to make the necessary changes to switch to /beta/sources/:id/load-accounts. We will re-enable the endpoint in all production tenants on Monday (7/22) morning US time. This means that /api/source/loadAccounts will be finally deprecated the week of August 5.
Although a non-breaking change was introduced this past week to the beta endpoint, this change was specific to the use case where customers disabled optimization via workflow. If you do not need that, the replacement has been available since mid-April. Please also make sure that your File Upload Utility is up to date as well, which leverages the new beta endpoints.
We appreciate the feedback and your cooperation, and we hope this provides some relief.