You can find item mapping rules in your application settings.
Navigate to Settings > Dimensions > Mapping Rules
Reach out to your Account Manager (AM) if you wish to modify the automapping strategy for your dimensions. Deleting an item mapping rule will unmap the dimension mapping for that line item across all the automapped unexported invoices within the application. This could move some of the invoices from the “Pending export”, “Approved”, or “Pending approval” state to “Needs attention”.
Modifying a rule only changes the mapping, not the location/vendor context. Modified values are shown on all automapped unexported invoices in the application.