Automatic Clearing ETEBAC format

Hi experts,

I want to perform the clearing when I upload an Electronik Bank Statement, type ETEBAC.

I can integrate it, and the posting is OK (Posting Area 1). However, the clearing doesn't work in posting Area 2.

I already created a transaction type with :

- External Transaction 18 with for sign + = algorithm 020.

- External Transaction 18 with for sign - = 000.

My criteria is the document number.

Could you help me.

Best Regards,