It needs to be secret because otherwise anyone could use it for a package, and that owner of that number would have to pay the VAT.
One of the July 22nd C&D updates was to stop the number appearing on the labels, as it had been in certain cases.
I had success with my delivery of a parcel to an Irish customer. It took a bit longer than usual to arrive but when it did there was no additional charges to the customer and I can confirm the IOSS symbol was present on my Click and Drop postage label.
So is there a trend with particular European countries that are having issues with double VAT charges?
Also is anyone else being completely ignored by Crossborderit? I applied for my IOSS number through them and it shows up in my Crossborderit account but I have been emailing for weeks and not had a single response! I am unable to upload my CSV file (constant error response) and I have requested the Private app link but hae not received it. Not sure how I am supposed to upload the VAT data as requested by Crossborderit at this point.
It's not in the QR code, it's in the electronic data that precedes a package arriving in the EU. The number is checked by customs against the EU-wide database. If it's valid, if the package value isn't over 150 euro, and it doesn't contain excise goods, the package will be released from customs for delivery.
Edit: Removed a bit about online marketplace numbers as I don't think it was correct.
The support address is not very responsive but Damon has been quite helpful.
It took a lot of playing around with the format to get it to upload accurately. I have to admit I was hoping that we would have the private app this week so that I don't have to do another manual upload.
I finally got it to work by creating the table and then concatenating the values with ; in between each value. I then copied the values only into a separate file and saved that as a CSV file. There was an issue with the date format not pulling through properly as it looks like a sum but if you have ' before the date it should. (Apologies if any of this is teaching to suck eggs!)