Hey @mathiasvissers
Thanks for that clarification. I can shed some light on what to expected from that Last Updated timestamp.
The Last Updated timestamp is only going to refer to the initial syncing between the store and the MailChimp list. After the initial syncing to backfill purchase data to your MailChimp list, that timestamp will not update.
Regarding automatic syncing, the MailChimp For WooCommerce integration does not sync regularly, and only syncs when specific actions are made in WooCommerce. This includes when a purchase made, when a shopping cart is abandoned, or when an order is manually updated from within WooCommerce’s admin panel.
To pull it all together, the 5000 products at a time is only referring to the initial syncing that backfills purchase data to the MailChimp list. After the sync has completed, there are not any ongoing processes that run to sync data.
If you have any further questions, don’t hesitate to let me know.
Malachite