https://userapps.support.sap.com/sap/support/knowledge/en/3052926
3052926 - How to exclude the S/4 data for 1 entity in RTC | SAP Knowledge Base Article
There is 1 entity that has posting in S/4 and has manual posting in BPC. You just want to consume the manual postings in BPC. You do not want the S/4 posting...