3557452 - Exchange rate for accounting is not updated properly

When creating the billing document, the exchange rate for accounting in header level is not updated properly based on the billing date maintained in "Currency Exchange Rates" app.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP S/4HANA Cloud Public Edition

One of the possible causes is that the exchange rates are maintained under other types in the "Currency Exchange Rates" app. 

Maintain the exchange rate under type M "Standard translation at average rate". 

Other possible causes:

Exchange rate for FI postings (field VBRK-KURRF):

• Specifies the currency exchange rate between document currency and local currency. When a billing document is posted to financial accounting, the system also forwards this exchange rate to enable subsequent processing.
• Customer invoice
  If there is a manual entry in the sales order field VBKD-KURRF (Goto -> Header -> Accounting), then it is copied into VBRK-KURRF. Otherwise VBRK-KURRF is determined during invoice creation from the "Currency Exchange Rates" app according to the billing date. It is supposed that manual entry has higher priority. The exchange rate for Accounting (field VBRK-KURRF) is always determined with exchange rate type M, even though a different exchange rate type is maintained in the customer master record. It is possible to influence on VBRK-KURRF_DAT field in your own data transfer routine then assigned to copy control to get exchange rate for FI postings (field VBRK-KURRF) recalculated if document currency is not the same as local currency. 
• Intercompany billing
  VBRK-KURRF is always redetermined.
  It is because sales order and intercompany invoice could have different local currency, so it doesn't make sense to copy the exchange rate. 

customer invoice, manual entry, sales order, VBKD-KURRF, local currency, exchange rate,  FI posting, accounting, billing date, currency exchange rates, type M, data transfer routine , KBA , SD-BIL-IV-2CL , Processing Billing Documents (Public Cloud) , Problem

SAP S/4HANA Cloud Public Edition all versions ; SAP S/4HANA Cloud all versions