What is a trading relationship?

SAP Business Network

A trading relationship is a link between your supplier account and your customer's account on the SAP Business Network. It allows for the transfer of documents such as purchase orders and invoices between you and your customer.

If you do not have a trading relationship with a customer, you will not be able to invoice for that customer or complete any related actions.

To establish a trading relationship with a customer follow the below steps:

1. Sign into your SAP Business Network Business account
2. Click [user initials] in the upper-right corner of the application
3. Locate your SAP Business Network ID (ANID) number and provide it to your customer

With this, your customer can add your company as a trading partner and send you a trading relationship request.

Once you establish a relationship with your customer you will be able to receive and invoice purchase orders that they send you.

https://support.ariba.com/item/view/KB1303838

SAP Business Network for Procurement & Supply Chain > Registration & Onboarding