Bapi_incominginvoice_create an invoice and an error is reported.

Today, 70% of brain cells are in sleep state, and 50% of eyes are in merged state. The problem rate is 30% year on year.
Invoice validation error: "system error: Routine mrm_frseg_check error in FRSEG-WRBTR"
E M8 system error: Error in routineMrm_frseg_checkFRSEG-WRBTR
After a long time of hard work, I checked a lot on the Internet.
Finally, execute bapi_incominginvoice_create in se37, add all the data (I have added more than 30 records), and test.
Cause: It is found that the number of goods received is 0, and the amount of goods received is 0. When it is 0, it cannot participate in invoice verification.
Solution: when preparing data, consider the row project with 0.
BAPI_INCOMINGINVOICE_CREATE.ITEMDATA-ITEM_AMOUNT <> 0