MPN S/4HANA Custom specific FFF-Classes

[Pauer]

Hello,

I have adjusted the new concept of manufacturer part number in S / 4HANA with full interchangeability for a customer. Is it somehow possible to assign a manufacturer part to several FFF classes? The background is that e.g. Customer A says that MPN material 1 and MPN material 2 are permissible. Customer XY says that only MPN material 1 and MPN material 3 are allowed.

That means I would have to create one FFF class per customer-specific requirement with the MPN materials released by the customer. However, this does not allow the system, because I can assign only one MPN material to an FFF class at the same time. Is there another way here? Can I extend a second FFF class with a material that is already contained in another FFF class at the same time?

Thx & Regards,
Patric