User Exit After Save for MM42

Dear Experts,

Is there any user exit for after save in MM42?

What I want to achieve is to really check if user has delete/add a new hierarchy node. I'm thinking to get the READ user exit where I can get the number of hierarchy node assigned to the artcle by SELECTing to table WRF_MATGRP_SKU. I've implemented the BADI BADI_ARTICLE_REF_RT for this.

But I haven't found the after save BADI to really get the new number of assigned hierarchy node.

I've tried to implement BADI_ARTICLE_REF_RT and also MGW00001, MGW00002 but still no succeed.

Thank you,

Suwandi C.