The ProConfiguration interface of ProIntegrationLib supports the extensions of the SAP standard BAPI function BAPI_MATERIAL_SAVEDATA.
Procedure:
Declare a structure data object of type /PCH/GCP_CFM_MAT_CRE_INFO
Set up the extension data
Set up other data
BAPI_MATERIAL_SAVEDATA
For your own implementations, you can use program /PCH/GCP_CFM_EXTNS_TEST as a reference.