Service entry sheet in Extended classic

Dear all,

I would like to check with you, what possibilities does the extended classic scenario give us for GR of services?

Currently we have limit POs for transportation services and we would like to know, how the confirmation of monthly transportation services can be managed via SRM (as it not always has to be the whole amount of PO).

And is there any way how the suppliers can do it themselves (without activating SUS) please?

Is there any "safe" way how to give them access?

Wish you a nice day and thank you in advance for your help,

Eva