The Koha Acquisitions module provides a way for the library to record orders placed with vendors and manage purchase budgets.KnowAll, the Knowledge Base theme for WordPress
5.4 EDI Accounts
From here you can set up the information needed to connect to your acquisitions vendors.
To add account information click the 'New account' button.

In the form that appears you will want to enter your vendor information.

Each vendor will have one account.