I want to personalize an email but the conditional I want to use is not an option via an "If" statement in the WYSIWYG, or is more complex. What other options do I have?
If you can't create the exact conditional that you want for an email using an "If" statement in the WYSIWYG you can use a query instead. Create a query to pull in exactly the constituents you want for your personalization, then add those results to a query group. You can then conditionalize based on group membership, as outlined here.