This is something that's relatively new, but I'm told it is affecting lots of mail going from the UK to southern Ireland, so I thought it would be useful to let people know here.
Every other country I send straps to (and that's most of the world) are accepting mail from the UK as long as there is a CN22 or CN23 customs declaration on the back with a description and value of the contents, but for some reason the customs in Southern Ireland have decided this isn't enough for them , and they are rejecting mail and returning it to sender. I've had a couple of straps returned this week as a result (stamped "Rejected / Failed electronic customs clearance") and so I have had a long chat with Royal mail this morning. They are aware of it, and have said this is new (last couple of weeks), and they don't really understand why Irish customs are doing this, but it's happening with a lot of mail.
Apparently Irish customs now require a commodity code for each item being sent, not just a written description, on the customs form attached to the package. The comodity code is obtained from HMRC and describes not just what the item is, but also where it was manufactured, how it was manufactured & what it is made of. This is the link to generate a code - https://www.gov.uk/guidance/finding-...de-tariff-tool. I'm sending the straps back this week along with the commodity code so hopefully they will now get through, but it's a pain in the arse, both for me and the customers!
This info isn't yet on Royal Mail's advice for exporting and I doubt the staff at the Post Office will know about it, but I thought it was worth a mention