MyT - Adding Reg Number

[FiestaRed]

Can anyone please advise how I add my vehicles registration number to the MyT app?

Just been to the dealership to have a quick peek at the car before it goes in for PDI and I was given the new registration number. I already have the VIN number showing on the app but there is just a dash below where it says Registration.

[Gray86]

I think the dealer will do it - mine just ‘happened’ once dealer had registered it 

[FROSTYBALLS]

The registration number won't become valid until it is entered onto the DVLA system - ie when the car is first registered (usually on the day of delivery, which is also when VED is charged).