Hi @Tisigi 

Please find the below explanations regarding the No Matching and No Arrival status messages: 

No Matching

No matching status is fetched when the PO ref field is entered in the Supplier invoice and when Purchase order is still not matched with the Supplier Invoice. In the Supplier Invoice if it is Posting Proposal enabled, In the Posting Proposal window, when you RMB on the header > Select Purchasing > Select Match PO Receipts: In the Pop-up window “Post from Purchase order” you’ll see the awaiting Receipts to be matched.

No Arrival

No Arrival Status is fetched where the connected or entered Purchase Order is still in Released state not yet received through the Register Arrival window. If you search for the PO and RMB on the header and then select Register Arrivals or else search the PO ref in the Register Arrival window, you will find a pending to be received line on that PO in the Register arrival window.

Hope this explanation would help you to understand the scenario better.

Best Regards,

Sandaru