You can manage which buyers a user can access in Capture through the Capture User Permissions app in Access Evo.
Add the App
Log in to Access Evo as an organisation administrator.
Open a Dashboard tab then select Add App.
Add Capture User Permissions.
The app should now be on your dashboard.
Change buyer access for a user
Go to Capture User Permissions app.
Select user to amend from the list and click Edit.
Select the buyers you want to add to the user.
Click Save.