Klaviyo only adds Members to your Lists AFTER they have double opt-ed-in if double opt-in is enabled.
Usually when your stats from Wheelio Dashboard don't match up with Klaviyo is due to having double opt-in enabled.

How to disable Double Opt-In in Klaviyo?

To disable double Opt-in in your Klaviyo Account:

Click on your "Lists & Segments" that you would like to edit.

Click "Settings"

Listed under "Opt-in & Unsubscribes", uncheck the checkbox that says "Require subscribers to confirm their sub...."

Note: We highly recommend using Double Opt-In (having it Enabled) as this highers the quality of your leads.
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