Facebook optimization method ocpmycr , utm5

We think this means
Optimize for completion of registrations

Why do we think this?

The adverts using this ad code value all result in the completion of a form, whether registering for an event, or to vote, or just to provide personal data.

When shown against supporter segments, it is only shown to non-action takers and non-registered supporters. Attempting to get those people to register would make sense.

Used in 52,927 adverts with a spend of $7,020,277

Count Spend

No values for time period.