3386388 - Error GK854: "Posting with identical currencies, but amounts do not agree" when running task Line item validation in Data Monitor

When running task Line item validation in Data Monitor, there is an error message GK854: "Posting with identical currencies, but amounts do not agree" 

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SAP S/4HANA Cloud

In the Define Consolidation Units app, for the consolidation unit where the local currency equals the group currency (for example, EUR), 
if the source for the group currency key figure is empty, the GC values will remain empty during release, and as a result, an information message will pop up.

Make sure the source for group currency key figure is 'H local currency' for the unit in app Define Consolidation Units, and then run the Release Universal journals task again.

CGK854, identical Currencies, Line item validation, Data Monitor, local Currency, Group Currency , KBA , FIN-CS-COR-ANI-2CL , Annual Net Income Calculation (Public Cloud) , Problem