[NewToSweden]

I recently got my XC '19 T5 AWD polestar optimized. I understand that I have to undergo a registration inspection within 30 days of the change. I contacted Bilprovningen and as per them the workshop should have given me a certificate (intyg) mentioning the change. The personnel at Bilia said that the invoice/receipt is sufficient to prove that the optimization has been done.
Do we know who is right here? If there's a certificate, how does it look like?

[V60ccsummum]

You need a cirtificate that shows what engine you have and what changes has been done. I did it on my car a few years ago and did get the cirtificate from my dealer ho did the optimization

[Lockis]

The invoice won’t be enough. Call them back and ask for proper paperwork on the optimization.

[NewToSweden]

Thank you @Lockis and @V60ccsummum for you replies.
Followed up with the dealer again and they provided a certificate. The registration inspection was approved.

Love the car even more after the optimization.