WLM_ERR_06
Problem
The Membership Level ID was rejected by your WishList Member server. Did you delete or otherwise edit your membership levels lately?
Solution
Membership Levels are pulled and stored locally. Refresh your list.
- Navigate to https://secure.ultracart.com/merchant/configuration/wishlist_member/wishListMemberListLoad.do
- Click on the
Sync Levels
button for your WishList Member server instance. - See Wishlist Member Integration for further help.