Non Subscribers sync problem

@dezitech so sorry this happened to you. Sounds like you are experiencing a plugin conflict. I suggest you attempt some troubleshooting on a staging site before moving forward.

Question, before you synced your contacts, did you turn off automations? That is important. Can you enable remote diagnostics so that I can do a deeper dive please? Enable the Remote Diagnostics feature found in the plugin’s Settings tab. This allows the Mailchimp for WooCommerce development team to diagnose and fix the issue remotely.

First thing I would do is Pause sync and automations immediately in Mailchimp to prevent further unwanted sends.

You should also consider archiving the contacts that you imported so that you do not get charged. I want you to also check your initial sync settings and resync settings – please make sure you do not have it set to “Subscribe All.” Once you turn on remote diagnostics, let us know.

Ok – I noticed a couple of things that I think you should look into while I have engineers reproduce this issue:

Do you have any other stores connected to your Mailchimp Audience or any other plugins that would add to your audience? The plugin would not create customers that do not exist. Could you happen to have another plugin that syncs customers to your audience? I checked a couple of contacts and the plugin is respecting the sync subscription sync.

Selective Sync Enabled= Deactivated, this means you do not have that setting off. That means you may have clicked the “Sync new non-subscribed contacts.” after sync.

• When this setting is enabled, only customers who subscribe to your Audience during checkout or create an account on the store will be sent to your Mailchimp Audience. Transactional customers who make purchases will not be included in the sync. This setting gives you more control over who gets added to your Mailchimp Audience.One important outcome of choosing this option is that transactional messages, like abandoned carts, order confirmations, etc., will not be triggered for the customers who are excluded from the sync. Only the subscribers will receive these transactional messages.

I really do think you are experiencing a plugin conflict – Follow this guide on how to test for and resolve plugin conflicts

RE this, when did you see this happen to the other website? Additionally, in the same Mailchimp account, the client has another audience linked to a different website (through the same plugin). We did not make any changes to that website, yet the number of contacts in that audience also increased.

Can I have the URL for this as well? I will circle back

Ok – talked to some folks:

I can not confirm whether or “confirm whether having both Mailchimp for WooCommerce and MC4WP active on the same site could cause overlapping imports or trigger duplicate contact creation?” I can tell you what our plugin does, but cannot troubleshoot the others. You will have to determine IF it is a plugin conflict for this.

From what I recall it’s not possible to make duplicate contacts in Mailchimp. Each contact in a audience has a unique email address. Now across different Audiences yes you can have a contact in one Audience have the same Email address another contact in another Audience. Taken from the MC site:

When you add contacts to an audience, we’ll automatically scan for duplicates to make sure each email address only appears once.

However, we don’t do this across all audiences in your account. If the same person’s email is in two audiences, we see that as two people. We typically recommend keeping a single primary audience in your account so Mailchimp can automatically prevent duplicates.

About Duplicate Contacts: https://eepurl.com/dyimtn

I see that you have only 1 audience connection to your https://greekroots.shop shop – I would check your settings to make sure your URLs are connected to the correct audiences and review your settings. If you would like me to look into your second store, you will have to enable remote diagnostics for that – As far as our integration adding contacts beyond the integrated audience, that is just not how it works and I suspect there is another plugin adding this behavior.

Hi – It could – But the best way to determine this would be to do a plugin audit. Each Woo set up is unique so, a firm yes is hard to say. Did you get anything from the audit?

<span style=”font-size: inherit; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;”>Can you confirm whether both sites are using the </span><strong data-start=”1789″ data-end=”1805″ style=”font-size: inherit; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;”>same API key<span style=”font-size: inherit; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;”> (even though they target different audiences)? That’s often the key factor in cross-audience updates like this.</span> Check in your MC account page > Extras > API keys – Check to ensure they are not the same. I am still looking into this for you. thanks

@dezitech Hi there, I’ve been working with @kjvextras to help resolve.

Circling back to the beginning we noticed you mentioned your configuration for initial sync was set to Sync existing contacts only we went ahead and tested this on our end and can confirm that this option functions as expected honouring it and only sending customers that are existing Mailchimp contacts only

Customer ::: The option “Sync new non-subscribed contacts” may have been enabled briefly after the initial sync.

This should have no affect on initial sync it is only geared towards ongoing sync.

Customer ::: Could you please confirm whether having both Mailchimp for WooCommerce and MC4WP active on the same site could cause overlapping imports or trigger duplicate contact creation?

To set the proper expectation, we’re unable to provide definitive guidance or support concerning MC4WP however, we did notice that MC4WP has e-commerce features where a conflict is possible. (See: https://www.mc4wp.com/kb/#e-commerce).

We recommend troubleshooting by way of deactivating all plugins except Mailchimp and Woocommerce to find narrow down what might be causing issues. A good tool for doing is with the official WordPress called Health Check & Troubleshooting

And, could the shared Mailchimp account (used by two different WooCommerce stores) also lead to this cross-sync issue between audiences?

No, we encourage users to always have a single audience or account per Woocommerce store the plugin supports this.

Finally, to help us continue to investigate, please provide the following:

• example customers impacted (feel free to submit through the linked support form)
• Activate Remote Diagnostics (so that our team can take a closer look at your store an logs)

It’s understandable that we’re requesting of you sensitive information which is why we’re providing a link to a Google Form where you can complete it to pass us the necessary information such example customer email addresses for our investigation.

Support contact form [ ⚠️ This form is not monitored, outside of this specific thread. Please create a new thread in the support form for any new support request even if related to this issue.]

@dezitech were you able to get things resolved? Huge thanks @lapzor for the layup!