Background Job Error

Hi All,

We have a job "Inbound Processing of IDocs ready for transfer" which is failing on regular basis.

Here I am pasting the job log for your reference.

1.Job started

2.Step 001 started (program RBDAPP01, variant Z_UK_INB2, user name BKGD)

3.ABAP/4 processor: CONVT_NO_NUMBER

4.Job cancelled

Please help us in investigating this job failure.

Thanks in Advance

KP