difference between MM-SUS and SRM-SUS

Dear Experts,

One Basic Question...........

As per my understanding,

• MM-SUS is the one which is conected to ECC system.

This will work for all the materials.

• EBP-SUS is the one which a part of SRM system which only works for classic/stand alone scenario.

This does not work for direct materials.

Is this correct?

GH