Hi Pradeep,
For the Procedure, you need to complete the IMG activity "Assign Customs Code List Procedure to Legal Regulations".
In that activity, the relevant "Object" is 'PGETY' ("Package Type"), and you can define a new Procedure, if required, in the activity just above that: "Define Procedures for Customs Code Lists". Procedure 'CUSAU' is supplied as standard, however.
Once that activity is complete, then you can assign the Packaging Types from your feeder system to the ones in your Code List, which you will have created in the activity "Maintain Customs Cod Lists for Legal Regulation".
Does that help?
Regards,
Dave