I am facing strange error. We have intercompany scenario and Idoc is generating at the time of Intercompany billing invoice doc. As per below idoc doc. it was generatd from billing doc. no. 0180021836 (as per (BELNR) and Accounting doc. no. 5100073006 was posted. However when i check this billing doc. no. it showing different accounting document. can someone please help why system has updated wrong doc. no. in Idoc status
Now, it does not finish here while checking accounting doc. which was updated in Idoc its showing in the header that it was entered manually via FB01. There is no relationship with billong doc. for it. only reference field was used. (I am believing it because while clicking reference key it doesn't take anywhere, even posting are also 40 and 50 posting key so purely FI doc no SD posting key like debit customer posting key 1 and credit payment with posting key 50)
Please help as i never seen system behaviour before.