Connect Ninja Forms. Send every lead to Loops.

How the Ninja Forms Loops integration works

The Ninja Forms Loops integration uses ClickSyncr for Loops to send each submission to a Loops mailing list. Its form action lets you connect the account, choose the destination, and map the answers collected by this form.

Prepare the form and account

You need an active Ninja Forms installation, a Loops account, and access to its API key. The plugin’s readme, checked on 10 November 2026, requires WordPress 6.7 or later and PHP 7.4 or later. Prepare an email field and the other answers you want to collect before opening the integration.

If the Ninja Forms form should collect a marketing choice, add a suitable consent input before mapping. Decide which Loops mailing list should receive the contact. This gives you a specific destination to check when testing, instead of looking only for a successful form confirmation.

Install the WordPress plugin

In WordPress, open Plugins > Add New. Find ClickSyncr for Loops – Contact Form 7, WPForms, Gravity Forms, Ninja Forms, Fluent Forms, Formidable & Forminator, then select Install Now and Activate. Keep Ninja Forms active too: ClickSyncr adds an integration to that builder’s form settings.

Open the Ninja Forms integration

Edit your Ninja Forms form and open Emails & Actions. Add the ClickSyncr for Loops action, or open the existing action. Connect the account within that action and set its destination before matching the submitted fields.

The Ninja Forms integration is an action attached to the form. Check that you are editing the intended action before changing its destination. Select the email field from the form’s available choices, then save your mappings with the action and publish the form changes.

Connect the Loops account

In Loops, open Settings > API. Generate a key or copy an existing key, as described in the plugin’s setup instructions. Paste it into the form’s ClickSyncr for Loops configuration and select Connect. Choose the intended mailing list from the loaded destinations.

Confirm the Loops destination before mapping additional answers. If you change the account or select another mailing list, review the loaded fields again. Save the Ninja Forms configuration after the connection and mappings are complete.

Map the Loops fields

Map Email to the visitor’s email field. The standard Loops properties are firstName, lastName, source, userGroup, and userId. Custom contact properties are loaded from your Loops account. Their labels appear alongside the standard choices, with type information for the mapping.

Match each Loops field to the Ninja Forms answer that contains the intended value. Check the source field’s label and type, especially when the form has similar names for several inputs. Use a test containing every mapped answer so missing values are visible during review.

Set consent and confirmation

Under Subscription and consent, select a Consent field if this Ninja Forms form should send only opted-in contacts. When selected, a checked answer allows delivery and an unchecked answer sends nothing to Loops. Without a selected field, the saved status choice controls delivery.

Loops offers Subscribed – added to the list right away and Not synced – nothing is sent to Loops. This integration does not add a confirmation-email step. Choose the consent field when a visitor must opt in before their details are sent.

Test the published Ninja Forms form

Submit the public form with a contact you control and fill every mapped answer. In Loops, inspect the selected mailing list and compare the stored values. Check ClickSyncr’s recorded sync status too. If consent is configured, repeat with it unchecked and confirm that the contact was not sent.

Resolve the reported error

“No Loops mailing list selected” means the destination has not been set. Select the mailing list and save the form’s configuration. “Email is required” means there is no usable email value for the API request; inspect the mapping and the submitted answer.

The message “Nothing was sent. This form has no API key.” calls for checking the saved Loops connection on this form. Fix the reported issue before testing again. Do not assume a Ninja Forms success message means the destination accepted the contact.

The Loops overview covers the destination, while the Ninja Forms hub covers the builder. Review ClickSyncr Pro separately if you are comparing the available editions.

When a test entry reaches Loops with the right fields and consent, the Ninja Forms Loops integration is ready for real visitors.

Frequently asked questions

Can I map custom Loops contact properties?

Yes. The plugin loads custom contact properties from your Loops account and offers them with its standard fields. Map each property to the corresponding form answer. The available custom names depend on your account, so create the property in Loops and refresh the choices before mapping it. Submit a test containing that value and inspect the stored contact afterward.

How do I choose a Loops mailing list?

Connect your Loops API key in the form’s ClickSyncr settings, then choose the mailing list offered for that account. The destination belongs to that form’s configuration. Review the saved choice when you copy or rework a form, and check membership during testing. A successful account connection does not replace the need to choose the list that should receive the contact.

What subscribed status does the Loops integration use?

The sending path marks the contact as subscribed and adds it to the selected mailing list. The alternative Not synced setting sends nothing. A configured consent field takes precedence: a checked answer permits delivery, while an unchecked answer stops it. This setup does not send a double opt-in confirmation message, so test both consent outcomes before using the form for newsletter signups.