Hi everyone,

We've encountered an issue with the Contact Form 7 Connector plugin while integrating our contact form with MailerLite. We only collect the first name and email, but the plugin duplicates the first name into the last name field, even though we haven't set it up that way.

MailerLite support has reviewed our setup and confirmed that their API receives the data correctly, meaning the issue likely comes from the plugin.

Has anyone experienced this problem or knows how to fix it?

Thanks in advance for any help!

Hello,

Have you checked app and debug logs? Enable logs on "CF7 Connector -> General" page ("Application Log" and "Debug Log"), try to subscribe and then check logs.

Regards,
ARI Soft

Hi again,

Thanks for your previous response! I’ve reviewed the logs as suggested – and also want to share something important I’ve discovered.

We use two types of signup forms on our website:

A form built using Contact Form 7 + CF7 Connector

A native MailerLite form, embedded directly

➡️ Both forms only ask for first name and email.
➡️ However, only the CF7 Connector version results in the first name being duplicated into the last name field in MailerLite.
➡️ The embedded native form does not cause this issue.

This clearly points to the plugin as the likely source of the problem.

I also want to add that both “Application Log” and “Debug Log” have been enabled from the beginning, and based on what I’ve reviewed (and even shared externally), the plugin logs only show a single name field being passed.
There is no indication of a last_name field being created or sent via API.

This suggests the plugin may be duplicating the name value internally and mapping it to both first_name and last_name – but this behavior is not shown in the logs.

Could you confirm if the plugin handles the name field this way by default?
And more importantly – is there a way to prevent this duplication and send only one field to MailerLite?

Thanks in advance!
Katka