How is the invoice exception type in Ariba configuration done in SAP Ariba please explain me anyone example exception type in Invoice
The Help Portal has some good documentation on Invoice Exceptions, what they're used for and how to configure them: About invoice exception types and conditions | SAP Help Portal
The purpose of the exceptions is to identify issues with invoices during the Invoice Reconciliation process that users have to resolve before the invoice can be fully approved/reconciled. These exceptions essentially help enforce your business rules and it's a way to force users/admins to have to review/correct issues. There are some that come out-of-the-box that you would most likely use in your production processes. For example, there's one that checks whether a GR has been done for a PO Invoice (PO Received Quantity Variance). You wouldn't want an invoice to fully approve/reconcile and send to SAP, for example, if the GR hadn't been performed yet because it might error. So the invoice exception helps in 'stopping' that invoice until that issue is addressed (the GR is performed).
Some other exceptions would include checking and giving a warning to users if:
If you're trying to configure invoice exceptions, the best place to start is by looking at those existing out-of-the-box ones and using that as reference for creating new ones or tweaking how the existing ones work. One tip I can give is to make sure you know how your invoices and suppliers are segmented, because invoice exceptions can be configured to apply to very specific scenarios and to specific sets of suppliers (see how Overrides work). This will ensure the invoice exception isn't triggering unnecessarily if it doesn't need to.
Hope that helps.