I think I’ve found out the answer:  https://help.klaviyo.com/hc/en-us/articles/360039002832
Klaviyo only pushes email addresses over.

I’d like to put in a feature request to sync other fields such as total order value.

Hi @noobmarket, 

Thanks for the follow up! I’ve submitted your feedback request on your behalf. 

~Chloe

Hi @noobmarket 

As a workaround, if you are looking to use that order value data in meta for audience targeting, you could create a segment in Klaviyo with the conditions you want and then push that segment to Meta.

Regards

Andy 

I need to sync the order value to Meta.
Create that segment doesn’t solve my problem.