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Segment export: Facebook Custom Anonymous Audience


Facebook Custom Anonymous Audience destination needs to be set by the administrator (Meiro team).

Learn more about how to set Facebook Custom Anonymous Audience in Meiro Events, Meiro Integrations, and Meiro Business Explorer.

Export audiences segmented in Meiro Business Explorer to Facebook Business Manager (Meta Business Suite), then to  Facebook Pixels. Create custom anonymous audiences from Facebook Pixels to target audiences further through Facebook Ads. Check the results of your campaign back in Meiro (segment customers you sent the campaign to and check its insights and customer profiles).

Export to Facebook Pixels in Business Manager (Meta Business Suite)

Exports tab setting


Exportable shows how many customer profiles will be exported to your destination.

This number is defined by the conditions you choose to segment the audience and mandatory attributes set up by the administrator (that must be present to export to your destination).

For example, if you segment 1000 profiles, but only 10 have mandatory attributes present, only those ten will be exported to your destination.

Mandatory attributes are visible in the Data Library/ Destinations tab.

For exports to Facebook Pixels, the mandatory attribute is: "FB Cookie ID". Customers who we do not know the “FB Cookie ID” for, will not be exported to Facebook Pixel.

Warning: It may happen that the size of your Custom Audience may be very low, while the size of the exportable audience from the Meiro is high. To understand more about the reasons for the low matching rate, please get acquainted with the primary article from Meta.


Audience Name (required)

The audience name inserted here will be visible in the Facebook Business Manager (Meta Business Suite)/ Facebook Pixel section described below in point 4.

Remember: "Audience name" from Facebook Pixel, will be referred to when setting up audiences in the Audiences section of Facebook Business Manager described below.

Warning: "Audience name" in the context of Facebook Pixel is different from "Audience name" in Facebook audiences. In Facebook Pixel it is visible in the URL address visible above, in Facebook Audiences, it refers to the name of the audience.

Facebook environment

Exports from Meiro will be visible in Facebook Business Manager (Meta Business Suite) under the Settings:

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> Go to 'Ad account settings'

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> Select account from the dropdown

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> go to Event Manager under the All tools tab

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> Select Meiro’s Pixel

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> Locate "Meiro Segment" events (1), expand them, and click the 'View Details' button

Remember: exports from Meiro will be all visible under the same event "Meiro Segment."

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> Go to Sampled Activities 

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> In the "Sampled Activities," each exported event is visible, as well as the URL with the "segment ID," which can be used to create an audience on Facebook.

Create a Facebook audience with exports from Facebook Pixels

To create a Facebook audience from Facebook Pixels, go to Audiences under the All tool tab:

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Select an audience you wish to update or create a new audience and fill out the fields:

  1. Source: Meiro Pixel.
  2. Events: Meiro Segments.
  3. Retention: (optional)
  4. Select URL/Parameter in the dropdown "Refined by."
  5. URL: insert Segment ID (retrieve from Facebook Pixel Sampled Activities > URL). Example: For URL https://www.meiro.io/MeiroSegment-42/audience_name-my audience, you should insert MeiroSegment-42.
  6. Give a name to the audience. 
  7. Create an audience.

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How long does matching between exports from Meiro and Facebook take?

Depending on the size of the exported audience, matching can take anything from minutes to single-digit hours. 

Updating with Facebook's interface can take 2-3 days, though. 

If you have any doubts, please check with the Meiro team. 

Will Facebook Audience be updated automatically when I schedule export regularly from Meiro to Facebook Pixel? Yes, the audience created from Facebook Pixel should be updated automatically by Facebook.
Will the upload of the events be incremental or overwrite existing audiences?

The load of the events is incremental to the same "segment ID." Please note that the cookie will be in the Facebook Ads Audience for the number of days defined while creating the audience on Facebook since the last event sent for this cookie.

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