Who decides on the conversion categories?

[maudnals]

Question from developer:

For event-level reports, can advertisers decide how to use conversion categories by themselves?

[maudnals]

Answer: Advertisers/adtechs can decide how to use the trigger data (3 bits for clicks) to encode any information they want. Coarse conversion data in 3 bits (8 categories) can be used to encode conversion types.