Symptom
In app Change Billing Documents, error FINS_ACDOC_DB007 “External document numbers starting with character G are internally used by SAP” occurred.
Environment
SAP S/4HANA Cloud Public Edition
Reproducing the Issue
1.In app Change Billing Documents, enter Billing Document=G****.
2.Error FINS_ACDOC_DB007 “External document numbers starting with character G are internally used by SAP” occurred.
Cause
The starting letter G for external number ranges is reserved for postings to technical ledger (such as profit center valuation and actual costing). It is not allowed to create documents with external document numbers starting with character G.
Resolution
Define a different external document number range for number range object RF_BELEG.
Keywords
External document numbers starting with character, internally used by SAP, Change Billing Documents , KBA , FI-GL-GL-2CL , Basic Functions (Public Cloud) , FI-GL-GL , Basic Functions , Problem
SAP Knowledge Base Article - Public