Hash the email. Do not hash the IP. Both mistakes still return 200.

A Purchase reaches the Meta Conversions API with a 64-character hex string in every user_data field. Test Events shows the event. Match quality on the live dataset stays poor, and nobody can see which field missed. The helper hashed the email, which Meta requires. It also hashed the IP address and the click cookie, which Meta requires you to leave... Weiterlesen: Hash the email. Do not hash the IP. Both mistakes still return 200.