Supplier Self Services

Dear community,

I would need some recommendations, best practices, experiences for the following:

We are looking for some kind of supplier self services:

• existing supplier should have option to update supplier master data, which at the end update master data record in MDG.
• potential supplier should be able to register using a self build supplier portal. After some validations in non-SAP systems, a new master data record should be created in MDG.

We already have SAP MDG in place together with a self build supplier portal.

Would be happy for any kind of idea and experience exchange

Best regards

Matthias.