Which table stores FBDI Import Sales Order subprocess errors? Main process shows status, no details.

Summary:

In which table can I find the error messages for errors that occurred during the Import Sales Order using FBDI at the Import Sales Order Subprocess level?

The main process shows only errored orders without error messages.

I have already checked the table DOO_MESSAGES_B, but it does not contain error messages for orders that failed during the FBDI import. For example, in one case the failure reason was a duplicate line number. This message is available in the subprocess log, but it does not appear in the main process log or in the DOO_MESSAGES_B table.