How to manage Document splitting on Profit Center

Dear SAP community,

I try to configure the Document Splitting on Profit Center.

For that, on the SSCUI Excel file, I found the following configuration points 100047 and 120100 SSCUI ID (respectively: Document Splitting Characteristics and Edit Constant for Nonassigned Processes). (See attachment file)

I do not understand the purpose of those points.

Could you help us in defining the different steps to manage the document splitting.

Thank you in advance for your help,

Best regards,

Laure Altazin