Profile: Sebastian

Problem: I would like to filter the results of a get_users PHP query using a custom User field.

Solution: For a custom field created in Types, the meta_key should be "wpcf-" plus the slug of the field from wp-admin. If you edit the custom field in Types > Custom Fields > User Fields, you should be able to find the field slug. You should also look at "Value to store" here, to determine the correct meta_value. Usually for a single checkbox, the meta_value will be "1" unless you set something custom.

Relevant Documentation:
https://pippinsplugins.com/retrieve-users-based-on-meta-value/
https://codex.wordpress.org/Function_Reference/get_users