Just read on the Abbott site that the tests expire December 2021. Ugh. I was going to buy 6, use 2 for my husband and I for our December trip (4 if necessary) and then save the other 2 for our February 2022 trip. One of our crew said she had to key in a name & date of birth assigned to each test kit.
The kit is only assigned to the person at the time it's taken. There is a person associated with the purchase but it has nothing to do with who uses them. Trust me on that, I ordered 12 and only 2 were used by me but they were all used successfully.
