How do I link to a new account with the same supplier?

To link to another account with the same supplier, just login to OnePosting, select 'Suppliers' from the top left, then choose 'Link an Additional Account' in the Registration Menu on the left-hand side.

This will open a Registration Wizard where you fill in details specific to the account that you wish to link to.

When viewing invoices and other documents from your supplier, you can now switch accounts using the drop down menu on the top right of the screen.