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Hello!
Is it safe to delete these from completed orders in the postmeta table?
mailchimp_woocommerce_campaign_id
mailchimp_woocommerce_landing_site
We have well over 200 000 finished orders now, and at this rate we will have an increase of 400 000 rows in the postmeta table every year just from these two rows.
Is it safe to have a cleanup procedure that deletes these regularly? Maybe you could delete them when not needed anymore, for instance after successful sync to Mailchimp?