Cash Flow Reporting: Summarization It is possible to summarize postings to a general ledger (G/L) account field. This means, for example, that all accounts beginning with “8” can be summarized to account 800000.
To achieve this, you need to configure the system as appropriate by going to Customizing and choosing , then performing one of the follow steps:
Assign Standard G/L Account
Enter the range of accounts involved and the G/L account to which they should be summarized.
BAdI: Derive Standard G/L Account
You can achieve the same effect with this step, by having the system derive the relevant accounts.