Product hierarchy doesn't works in ECC 6.0

Hello guys!

I'm working in a project that migrate to ECC 6.0 and now is facing an error in Material Master (MM01) when try to select a product hierarchy in Basic Data 1 view.

When the matchcode of product hierarchy is used, the "Next level" button of popup windown doesn't open the product hierarchy. I check with an another consultant that don't remember the SAP note that fix it.

Anyone knows this SAP note?

Thanks a lot,

Rodrigo.