You are not authorized to use this function in General Settings Logistics: Handling Unit Management - Configuration Steps

Dear colleagues,

Although I have added the business role SAP_BR_BPC_EXPERT and even SAP_BR_BPC_EXPERT_ALL to my business user id as an administrator. I still have no authorization to Configure "Step 1. Define Packaging Material Types" in Logistics: Handling Unit Management - Configuration.

Can Anyone tell me how I get this authorization to succeed the configuration?

Thank you in Advance :)