Is it possible and how can I get the current logged in user’s membership “creationDate”? Thank You
If it is in a dataset that you created yourself then see the system fields for that field.
https://support.wix.com/en/article/about-your-database-collection-fields#system-fields
If it is through Wix Members app and its own Members PrivateMembersData Collection, then just use the field in that collection.
https://support.wix.com/en/article/corvid-wix-members-privatemembersdata-collection-fields#creation-date-_createddate