Prerequisites
Before you set up and use customer and supplier self-service:
- Verify that you have set up address book master and supplier master records for the suppliers. 
- Verify that you have set up supplier and item information. 
- Assign a branch/plant and default location to each supplier. - When the suppliers inquire on orders, receipts, quotes, and so on, the system retrieves the information based on the branch/plant that you assign to the supplier's user ID.