https://userapps.support.sap.com/sap/support/knowledge/en/3639601
3639601 - Discrepancy in "spent" value in Cost Centers - Budget Monitoring Report
In the Cost Centers - Budget Monitoring report, the "Spent" value for Budget Category XYZ differs from the amount shown when drilling down to the G/L Account -...
cost centersbudget monitoringdiscrepancyspentvalue