WF e-mail from ECC to SRM/EBP

Hi guys,

please an advice: I have implemented on SAP ECC the std wf blocked invoice for price diff. (WS20000397).

Requirement: a lot of user have a own user only on SRM/EBP and these users can not receive the wf e-mail sent in ECC so is it possible to let that these users which have only a SRM/EBP user can receive the ECC wf e-mail?

Please advice.

Thanks in advance

BR

Massimiliano