# Memberstack custom fields

Memberstack custom fields are supported differently in their API than other fields. In order to sync custom fields, you need to create a member in Memberstack with the email "<schema@whalesync.com>".

Once you create that member, add the custom fields you want to sync and **make sure to put values in those fields**.

{% embed url="<https://www.loom.com/share/eecc3fefe0b74f8584fa3d2e3c41ec58?sid=724ac704-f427-4acb-8ba5-95690d9f5b45>" %}