force deduplication for event registrations: misleading help text → change suggested workaround or add feature to CiviEvent?
Sometimes you want to intentionally force duplicates for anonymous registrations for certain events. Some users even want this as their default in CiviEvent.
In the profile configuration there is the following hint how you should do this:
If you are using the profile as a contact signup and editing form - this option controls what happens if the data matches an existing contact record. Using this option user can update the matching record or create a duplicate record or otherwise he will get a 'duplicate record' warning, and their input will not be saved. Contact matching is based on your configured 'Strict' rule for identifying duplicate contacts. (Weiterlesen...)
This setting is ignored if the profile is embedded in an online contribution, membership signup or event registration form. In this case a contact match always results in the transaction being linked to the matching contact.
In all cases, the check for an existing matching contact uses the default "Individual Strict Duplicate Matching Rule" (match on email address). If you are concerned with existing contact data being over-written by anonymous visitors, you can modify this rule to make matches less likely (or even impossible). For example, if you NEVER want anonymous input to match (i.e. always create a new contact record) - edit that rule and set the 'weight threshold' higher than 10. You will then need to run Find Duplicates periodically using a different rule, and merge any duplicate records with their associated memberships, contributions, etc.
However, this kind of "suggested workaround" no longer works because you can no longer specify an unreachable threshold in the deduplication rules. In any case, the help text would have to be adapted.
However, the question arises how to deal with the actual requirement and I see at least two possibilities:
Option A: Replacing the workaround
Recommend in the help text to create an unachievable deduplication rule by using in the rule a field that is never used in the user's event registrations and advice them to set this rule for registrations when needed.
Option B: add a feature in CiviEvent
Add a "no deduplication" feature (like there is an option to deactivate deduplication in profiles) and add this option to the duplicate rule dropdown in the event configuration.
Any (other) ideas?