@juliemarie sorry to hear you’re having issues but it’s a little hard to know what the problem is from here. The “historical sync” you speak of is a very normal first step where you’re getting all your order and customer info into Mailchimp to be able to use this for segments and marketing etc. It’s not going to impact your site moving forward after completion, but yes we do understand it could be a little resource intense for some hosting environments. If you’ve got a large store to sync, it could be a good idea to look at your web hosting stack to see if it’s an appropriate size or if it needs to be adjusted.
The second concern seems like an email being sent from Mailchimp based on an order update? That should be something you are able to adjust inside your Mailchimp account. It sounds like you have an automation set up that you might not need?
As the plugin support side, we don’t have any insight to your Mailchimp account, but it would probably be best to reach out directly to your support while logged into your Mailchimp account and ask them to figure out which automation is firing and how to stop that. It should be a simple on/off/pause process that should fix that for you.
If we can help with anything plugin related please feel free to reach back out and we’ll be able to help.
