Originally Posted by corporate-wage-slave

The NHS App, which is actually the NHS App for England, shows the vaccine status of those who have been through the England vaccination process. I don't think that will be on the cards for you, nor much of an issue, due to the fact that you have an alternative certification from another well respected institution. In so far as a country or event requires certification I'm sure your existing certificate will do. Today I had the pleasure of completing the vaccination card of a West African nation, and a much more interesting, useful and confidence inspiring card than the NHS one. If the person concerned was using this to attend a Wembley event I'm sure it would do just fine.

A GP can add a local record which will let them know you have had a course of vaccinations. There is already a well established process for this, for example if you get your flu vaccine in a Tesco pharmacy you can and should get your GP to add that to your record and then your GP won't hassle you for it. This local record would show up in the GP records area of the NHS App but would not generate a certificate.

I wouldn't worry about being down as a non-vax person - lots of people with strong UK ties are currently overseas. Or even in Scotland.

The booster issue is a good point, though still unconfirmed in the UJ. Here the locat record will do since the rollout will probably use a combination of age/health condition and the date of the last vaccine. While I suspect a local record won't get picked up by any central invitation process, it will be obvious to your GP staff, and the booster programme will be almost certainly GP led.