Add member number
Our members are identified by a unique member number. This also show how long they've been members. We would like to have an additional field for member number added to WooCommerce Memberships. For now we will solve this by a custom field, but it would be better to have the member number in direct relation to the membership management in this extension.
The WP User ID provides a unique identifier. An ID that shows how long the person has been a member is a niche usage and would require customization.
A member number is very niche, and not something we’ll add to the main plugin.
You could use a “member number” by using the User ID, or a “membership number” by using the user membership post ID (if one person could have one number for each membership)