How to stop the auto clearing of invoices and credit memos.

2019-07-09-11-58-55-inbox-fzelenaj.jpgDear experts,

I would ask you if is any way, how to stop/block auto clearing of invoices and credit memos. I found, that this auto clearing processing because i set a reference number to credit memo and because of that, system automatically cleared amount of credit memo with invoice from reference number.

So one from option how to stop this auto clearing is not to set the reference number. But this option will loose a document flow without a reference number.

Today I found field "netting blocked". Is this field solution how to solve my problem or do you know any other?

Thank you so much!