i cant send an invoice to a buyer. all other items ive sold just auto added post

[tommy-goes-2-war]

i keep getting a blue message stating i cant send an invoice. ive tried finding how to add post to the order

[tommy-goes-2-war]

sorry forgot to say please and thankyou for any help. im very rusty on selling . its been years

[fargvs]

Invoices and reminders to pay are sent automatically by eBay at sale end so no need for sending another invoice unless you are combining orders ?. --- nothing can be added or changed after sale end.

https://www.ebay.co.uk/help/help/selling/getting-paid/introducing-managed-payments-ebay?id=4795

[tommy-goes-2-war]

hi thanks, im not sure whats gone wrong . its now stuck in limbo. and nothing being combined. i will screen shot it tomorrow and add pics