SAP Message 6E143 - No subledger line item found for open item

Diagnosis
Open items:
FI document number: &V1&
FI docoument line item: &V2&
FI document year: &V3&
Amount: &V4&
No corresponding line item was found in the loan subledger for the openitem in the customer account.
Due to the inconsistent data, the system cannot calculate balanceadjustements and cannot transfer the open item.

System Response
Processing is terminated.