Import Journals program ended up in a "Warning" status.

We have a integration, where the journal entries flow from external system. We make a call to import journals, somehow this time it got errored out. Can anyone explain me what might have caused this?

Thanks in Advance!

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Log file

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Data Access Set Id = 30000000XXXXXXX

Journal Source = Receivables

Ledger Id = 30000000XXXXXXX

Group Id = 43XXX

Suspense Flag = N

Create Summary Flag = N

Import Descriptive Flexfield Flag = Y

Interface Run Id = 106067

Submitting journal import for 1 group id(s).

Journal Import concurrent request 84330 has been submitted.

Total: 1 group id(s).

*********** Resuming ***********

Subrequest 84330 exited with warning.