Skip to content
Glossary

Lead form (Meta instant form)

Definition

A lead form (Meta instant form) is a request form that opens inside a Facebook or Instagram ad: a person leaves a name, a phone number and answers to questions without visiting a website. Meta stores every submission under its own lead ID.

Also written: lead form, instant form, Meta instant form, Facebook lead form, Instagram lead form, lead gen form, Lead Ads, lid forma, лид-форма

How does a lead form work?

Meta calls it an instant form; media buyers say lead form, and the ad format is known as Lead Ads. A person taps the button on the ad and the form opens inside Facebook or Instagram. Name and phone come prefilled from the profile; the person answers the advertiser’s questions and submits. No website is needed. The lead stays at Meta: it has to be moved into the CRM by hand or by an integration.

What does a lead form collect?

DataWhere it comes from
Name, phone, e-mailForm fields, usually prefilled from the profile
Answers to questionsQuestions the advertiser added to the form
Lead IDA number Meta assigns to every submission
Ad, ad set, campaignWhich ad the lead came from

What is the lead ID for?

The lead ID is a 15–17 digit number Meta assigns to every submission; Meta’s documentation asks you to store it in the CRM. It does three jobs:

  • Delivery without duplicates. One lead ID is one record in the CRM.
  • Attribution. A lead ID in the CRM is the most reliable way to tie a lead to its exact ad.
  • Outcomes back to Meta. When the lead becomes qualified or a sale, the Conversions API event carries this ID: Meta recognises the lead, with no website or cookie.

Example: 2,103 leads delivered to the CRM

In two projects CAPI Platform delivered 2,103 leads from lead forms into the CRM: 1,790 for a driving school since 25 September 2026 and 313 for a learning centre since 5 October 2026 (as of 8 October 2026). Lost: 0, in the queue: 0, errors: 0. That is a measurement for those dates, not a guarantee. A lead arrives by Meta’s webhook; as a backup the platform checks the forms itself every minute.

FAQ

How do leads from a lead form get into a CRM?

There are three ways: download them from Meta by hand, use a connector service, or use a direct integration. CAPI Platform delivers lead-form leads into Bitrix24, amoCRM or capiCRM in about a minute, with the name, phone, answers and the ad, each lead once. See lead delivery.

Which is better: a lead form or a website form?

Meta reported on 18 April 2024 that in 15 A/B tests instant forms delivered a 20% lower cost per qualified lead than website forms (Meta’s own data, 86% confidence). That is not your result: your answer is the cost per qualified lead in your CRM.

Does the Conversions API work without a website?

Yes. Meta recognises a lead-form lead by its lead ID, so CRM outcomes (QualifiedLead, Purchase) can be sent with no website. The steps are in Conversions API without a website.

Updated:

We set CAPI up in 3 days

$159 once, then $40 a month. Lead integration is included.