Add each 123 Form Builder submission to a Mailchimp audience
Newsletter, event and enquiry forms add the person to your audience with their name, so the list is ready for the next campaign without a CSV export.
New Form SubmissionAdd New Member
Connect 123 Form Builder and Mailchimp
Turn 123 Form Builder submissions into Mailchimp audience members. FlowMattic adds the person when they agreed to hear from you, tags them by the interest they picked, and keeps their message as a note on the member. The workflows run on your own WordPress site, so each signup form can feed the audience without manual exports.
7 triggers 16 actions 6 example workflows 1 ready-made template Unlimited runs
Try a pairing
When this happens in 123 Form Builder1 trigger
Do this in Mailchimp16 actions
1. TriggerNew Form Submission2. ActionAdd New MemberWhen 123 Form Builder fires New Form Submission, FlowMattic runs Add New Member in Mailchimp with the data from that event.
You build this in the FlowMattic workflow builder on your own site. See the setup steps
123 Form Builder and Mailchimp workflows you can build
Each one uses only triggers and actions the two integrations ship today, plus FlowMattic's own tools. Where the library has a ready-made template, import it instead of building from scratch.
Subscribe only people who ticked the consent box
A Filter checks the marketing consent field and stops the workflow when it is not ticked, so contact form entries do not end up on the newsletter by accident.
New Form SubmissionFilterAdd New Member
Tag new members by the interest they chose
After the member is added, a Router reads the topic dropdown and adds a matching tag, so each campaign goes only to people who asked about that topic.
New Form SubmissionAdd New MemberRouterAdd Member Tag
Keep the enquiry message as a note on the member
Quote and contact forms carry a message. Adding it as a member note means whoever writes the follow-up can see what the person asked for in Mailchimp.
New Form SubmissionAdd New MemberAdd Member Note
Handle unsubscribe requests sent through a form
Some audiences ask to leave by form rather than by link. A short request form removes the person from the audience, so nobody has to search for them in Mailchimp.
New Form SubmissionDelete List Member
Tidy names before they reach your audience
People type names in all capitals or with extra spaces. Text Formatter fixes the case and trims them, so merge tags in your emails read properly.
New Form SubmissionText FormatterAdd New Member
More ready-made templates with both apps
Set up: submissions as Mailchimp members
At the end, each submission of your 123 Form Builder form adds the person to your Mailchimp audience.
Connect Mailchimp
Under Connects, add a Mailchimp connection with the account that owns your audience.
Trigger on New Form Submission
Create a workflow with the 123 Form Builder New Form Submission trigger, follow its instructions to link your form, and submit a test entry.
Add the member
Add Mailchimp Add New Member, choose the audience, and map email, first name and last name from the captured entry.
Test and switch on
Test with your own email, check the member in Mailchimp, then switch the workflow on.
1. Trigger in 123 Form Builder
New Form Submission
-
2. Action in Mailchimp
Add New Member
Fields mapped from the earlier steps (a typical setup)
From 123 Form Builder To Mailchimp Email Email address First name First name Last name Last name Topic Tag, in a later step
Triggers and actions in this pair
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
Good to know
- 123 Form Builder has one trigger and no actions in FlowMattic, so every workflow here starts from a submission. Mailchimp events cannot change form entries.
- Mailchimp's actions here add, tag, note and delete members but do not edit a member's fields. Use tags for anything that changes later.
- Fields depend on your form, so the mapping above is an example.
Triggers (1)
- New Form SubmissionTriggers when new form submission is received
Triggers (6)
- New SubscriberTriggers when a new subscriber is added
- New UnsubscriberTriggers when any current subscriber unsubscribes
- Profile UpdatesTriggers when a profile updated
- Cleaned EmailsTrigger when emails cleaned
- Email Address ChangesTrigger when email address changes
- New CampaignTriggers when a new campaign is created or sent
Actions (16)
- Add New MemberAdd a new member to the list
- Add Member TagAdd a new tag to the existing member. New tags will be added if they are not exist.
- Remove Member TagRemove a tag from the list member.
- Add Member NoteAdd a new note to the existing member.
- Delete List MemberRemove a member from the audience list.
- Update MemberUpdate an existing member. Fails if the member does not already exist on the list.
- Find MemberLook up a member by email and return their full record
- Archive MemberArchive a member from the audience list. Their data is kept but they no longer count toward the list size. Reversible (unlike Delete List Member).
- Add Member EventRecord a custom event for a member. Useful for triggering customer-journey automations
- Add Member to SegmentAdd an existing member to a static segment
- Remove Member from SegmentRemove a member from a static segment
- Get All MembersFetch a page of members from the audience list
- Send CampaignSend an existing campaign by ID
- Create CampaignCreate a new regular campaign for an audience list
- Create AudienceCreate a new audience list
- Make API CallSend a custom request to any Mailchimp Marketing API endpoint. Power-user escape hatch
Why run this pair with FlowMattic
123 Form Builder and Mailchimp connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
Every form feeds the list
Each 123 Form Builder form can have its own workflow with its own tags, so you know where every member came from.
Signups at a flat cost
FlowMattic runs on your WordPress site with unlimited runs, so a busy signup month costs nothing extra.
Use your site as well
Add WordPress or FluentCRM steps to the same workflow, for example to create a site account for people who register.
Common questions
How do I connect 123FormBuilder to Mailchimp?
In FlowMattic, start a workflow with the 123 Form Builder New Form Submission trigger, then add Mailchimp Add New Member. Map the email and name fields to the audience, test with one entry and switch it on.
Can I add people to different audiences from one form?
Yes. Use a Router on a form field and give each path its own Add New Member step pointed at a different audience.
Can new members get a welcome email too?
Yes. Add an Email (SMTP) step after Add New Member, or add a tag with Add Member Tag and let a Mailchimp automation that starts on that tag send your welcome series.
Can I keep a copy of each submission outside Mailchimp?
Yes. Add a second step after Add New Member that writes the entry elsewhere, such as WP Tables on your own site, so you have the full answers even if the member later leaves the audience.
Did not find your answer? You can browse the help center or ask us directly.
123 Form Builder with other apps
Mailchimp with other apps
Mailchimp and FluentCRM7 shared templates
Mailchimp and WordPress7 shared templates
Mailchimp and Slack5 shared templates
Mailchimp and Google Sheets3 shared templates
Mailchimp and WooCommerce2 shared templates
Mailchimp and Facebook Lead Ads2 shared templates
Mailchimp and Airtable1 shared template
Mailchimp and HubSpot CRM1 shared templateStart automating 123 Form Builder and Mailchimp
Install FlowMattic, connect both accounts and import a template. Every run stays on your own server.
30-day money-back guarantee Unlimited workflows and runs Self-hosted
Reviewed 23 Oct 2026. The example workflows are written with AI from the real triggers and actions of both integrations and checked against them. 123 Form Builder integration 1.0, Mailchimp integration 2.1.0.