Posting control rules for ERC

Hi All,

I am new to SAP loans and would like to know how to configure Posting control rules for Early repayment compensation for loan product .

Defined ERC limit in the loan contract , if a cash deposit wich exceeds the ERC limit , payment item should go to 'Post processing'.

Tried with help.sap.com documents but it is not working .

Regards,

Ratheesh BS