- From the home page, click the Invoices button on the toolbar
- Click the Accounts tab
- Search for the invoice account that your agreement is on
- Click the Groups tab
- In the top grid, select the group that your agreement is on
- In the bottom grid, select the agreement that you want to make the master agreement
- Click the Make Master button
If this is the first agreement added to an invoice group, it will automatically be made the Master agreement