When performing bulk operations, data may be gathered from many internal endpoints, and compiled into a single bulk response. If a single source does not respond or is unavailable how should the Data Holder respond?
For example, in a call to Get Bulk Balances, a single account may not return a balance.
The DSB recommendation is to return a 500 Internal Server Error in this situation. If one item in a bulk response fails, then all fail. The DSB recommends against partial responses.
If you see a need for partial responses, please raise a change request.