MailChimp API Error

Hello Colin,

The error logged is because a field “MMERGE9” is set as mandatory in your MailChimp list but is not provided when the registration form is submitted. To fix this make sure the field values of “MMERGE9” are same in your form as they are in your MailChimp list. Also make sure to test the registration form with a value selected for this field. If this does not work, I would recommend unchecking that field as “Mandatory” in your MailChimp list.

Hello Harish,

Thank you for your suggestions.

I am using the free version of mp4wp & I have a subscription form on the site that uses mc4wp and it works perfectly. https://www.winework.com/subscribe/

After hours working on this I have managed to get my site registration and Mailchimp signup to work concurrently. Taking the “mandatory” setting off any of the Mailchimp fields, as you suggested, helped.

Now my problem is that although the new user is created in Mailchimp when registering, the only field that is being populated in Mailchimp is the email field.

mc4wp is not logging any errors.

All the other fields, named as follows are shown in the user’s site profile but not in Mailchimp.

Fields
EMAIL” (required)
FIRSTNAME
LASTNAME
MC4WP-MMERGE5 (Job Title)
MC4WP-MMERGE4 (Business Name)
MC4WP-MMERGE9 (Business Type)
MC4WP-MMERGE7 (Country)
MC4WP-MMERGE3 (Region)

I suspect that it is because the native WP fields Firstname and Lastname are not prefixed with “MC4WP-“.

Any clues on how to proceed?

Colin
winework.com

Hello Colin,

Are you by any chance using custom registration form?

Also, please note that we have another add-on “MailChimp Sync” that can be used to sync your data from user table to your MailChimp list. This plugin does the sync in the background so you won’t have to edit your registration forms.

Hi Harish,

Thank you for your response. Yes, I have been using a custom registration form. I’ve installed Mailchimp-Sync as you advised too. But I’m still not getting the custom fields populated in Mailchimp, so I have uninstalled the custom registration form plugin (Cimy) and am starting again from scratch.

Here is what I want to achieve. Can advise me if it can be done using your plugin?

1) At registration, I want to collect the following fields of customer meta…

First Name [text]; required
Last Name [text]
Job Title [text]
Business Name [text]
Business Type [drop-down]; required
Country [drop-down]; required
Region [drop-down]; required

2) If the user selects the ‘add to mail list’ checkbox when registering, then the information above is also sent to Mailchimp and they are automatically subscribed to our mail list.

3) If the user un-checks the checkbox when registering, then their information is NOT sent to Mailchimp, but they are registered on our site.

Seems that Mailchimp-Sync would be ideal, if I could get it to populate the custom fields in Mailchimp. (Yes, I have mapped the fields in MC-Sync.)

Please tell me if I’m using the right tool for the job in mc4wp!

Thanks again,

Colin
winework.com

Hi,

Either way it should work if set-up correctly.

Is it an option to make MMERGE9 a normal text field instead of drop-down on the MailChimp.com side (leave it a drop-down on WordPress side) and make it not required in MailChimp. Then you can see if it at least receives any data or if it still stays blank.

Since there have been no replies to this topic for awhile I will now close this ticket as resolved.
If you still have a problem or you have a similar problem as posted above, please open a NEW topic. Thank you!