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Segment export: Facebook Audience


To export to Facebook Ads, Facebook Audience destination needs to be set by the administrator (Meiro team).

Learn more about how to set Facebook Audience destination in Meiro Integrations, Meiro Business Explorer

Export your segmented customer profiles to Facebook Business Manager, then to  Facebook Ads to run a campaign. Check the results of your campaign back in Meiro (segment customers you sent the campaign to and check its insights and customer profiles).

After segmenting the audience, go to the Exports section, where you should be able to find to which destination is currently possible to export the segment (It is possible to set more exports, but it requires the help of the Meiro team).

Export to Facebook Business Manager, Facebook Ads 

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 Facebook Audience, those are the mentioned below:

  • Email address,
  • Phone number,
  • Advertising ID.

Customer profiles where the above values are unknown will not be exported to Facebook Audiences.


Audience Name (required)

The name will be visible in Facebook Audiences as the name of exported audience.


Audience ID (optional)

"Audience ID" defines which audience will be updated or if new audience will be created:

  • If the Audience ID is left empty, then a new audience ID will be created.
  • If you fill in an existing Facebook Audience ID (which can be obtained from Facebook Business Manager), that audience will be updated/ overwritten (not incrementally).


Warning: You can only update an existing Facebook audience if that audience was previously created through export from the Meiro. If an audience was created manually in Facebook Business Manager, that audience will not support the load of external data, hence it will not be possible to update that audience.

Remember: Each export from Meiro to a preexisting Audience ID will replace the previous audience and not load incrementally.

Retention_days (optional)

The number of days to retain before the audience expires and is removed. You can now set this value for both new and existing audiences, allowing you to extend or modify the audience retention period as needed.

  • When creating a new audience, you can specify the desired "Retention Days" value, which can be set for up to 180 days.

  • If left blank, the audience will not have an expiration date, meaning it will remain active until manually removed.

  • For existing audiences, you can also update the "Retention Days" parameter to change the audience's retention period, ensuring it aligns with your campaign needs.

Export the segment & Facebook environment

Export your segment manually by clicking on the Export button or set up a schedule (optional), so your export will run at scheduled times.

Schedule export to the same audience in Audiences/ Facebook Business Manager:

  1. Create a segment, fill in the Audience Name, the name will be visible on  Facebook.


  2. Click on the Export button.
  3. Then go to Facebook Business Manager.
  4. Find your new audience created and exported in Facebook Business Manager.
  5. Copy Audience ID  from Facebook Business Manager and paste it to the Audience ID field in the parameters sections, in the Meiro segment builder.

  6. Set up a schedule as needed and all exports will be exported to the same Audience ID.



Are any limitations of Facebook Audiences possible to load?

Facebook only allows the creation of up to 500 Custom Audiences per ad account. Any custom audience of more than 500 will result in an export error, and old audiences must be deleted.

What customers' data is exported to Facebook (mandatory & exported attributes)?

Meiro exports to Facebook:

  • Email
  • Phone number 
  • Advertising ID

Those are mandatory attributes needed in order to export to Facebook Business Manager.

Possible to export (if known)  is also:

  • First name
  • Last name

Exported data is set by the administrator. To see which attributes have been set to export, please go to the Data library/ Destinations tab, exported attributes

Warning: The number of exported customer profiles will not be the same as the number of "rows" visible in exports on Facebook. It is because rows are not customer profiles but identifiers. 

How long does it take to export? 

Export happens in real-time, and usually, it is a matter of minutes.

Will multiple exports overwrite existing ones or load as new ones? 

Multiple exports with the same name will appear as new custom audiences (separate) with the same name on Facebook.

Warning: There is no limit on API calls. If you experience any trouble, please contact the Meiro team.

Match rate

Facebook shows a match rate for audiences of more than 1000. If you export an audience of fewer than 1000, or if out of your audience, fewer than 1000 are matched, then the audience size will show up as “Below 1,000 - Small after matching”. However, your custom audience can still be activated if the availability is Ready.

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How do I delete custom audiences on Facebook?

Detailed steps can be found on the Facebook website.