GroundFloor Media & CenterTable Blog

You may have been using website pixels and email lists to create custom audiences for Facebook advertising for a while now but did you know that you can drastically increase your match rate by using multiple identifiers beyond just their email address?

Gather up your customer data and see how robust of a Facebook audience you can create and then use them as an advertising group who is familiar, and likely to engage with, your messages.

Data type Column header Description and formatting guidelines Examples
Email email We accept up to 3 separate email address columns in US and international formats.
  • username@hotmail.co.uk
  • your.name@gmail.com
  • myname@yahoo.com
Phone Number phone Phone numbers must include a country code to be used for matching. For example, a 1 must precede a phone number in the United States. We accept up to 3 phone numbers as separate columns, with or without punctuation.

Important: Always include the country code as part of your customer’s phone numbers, even if all of your data is from the same country.

  • 1-234-567-8910
  • 12345678910
  • +44 844 412 4653
First Name fn We accept first name and first name initial, with or without accents. Initials can be provided with or without a period.
  • John
  • F.
  • Émilie
Last Name ln We accept full last names with or without accents.
  • Smith
  • Sørensen
  • Jacobs-Anderson
City ct We accept full city names as they normally appear.
  • Paris
  • London
  • New York
State/Province st We accept full names of US and international states and provinces, as well as the abbreviated versions of US states.
  • AZ
  • California
  • Normandy
Country country Country must be provided as an ISO two-letter country code.

Important: Always include your customers’ countries in their own column in your file, even if all of your data is from the same country. Because we match on a global scale, this simple step helps us match as many people as possible from your customer list.

  • FR
  • US
  • GB
Date of Birth dob We support 18 different date formats to accommodate a range of month, day and year combinations, with or without punctuation.
  • MM-DD-YYYY
  • MM/DD/YYYY
  • MMDDYYYY
  • DD-MM-YYYY
  • DD/MM/YYYY
  • DDMMYYYY
  • YYYY-MM-DD
  • YYYY/MM/DD
  • YYYYMMDD
  • MM-DD-YY
  • MM/DD/YY
  • MMDDYY
  • DD-MM-YY
  • DD/MM/YY
  • DDMMYY
  • YY-MM-DD
  • YY/MM/DD
Year of Birth doby We accept year of birth as a 4- digit number, YYYY. 1986
Age age We accept age as a numerical value.
  • 65
  • 42
  • 21
Zip/Postal Code zip We accept US and international zip and postal codes. US zip codes may include a 4-digit extension as long as they are separated by a hyphen. The extention is not required and will not further improve match rate.
  • W11 2BQ
  • 94104-1207
  • 94104
Gender gen We accept an initial to indicate gender.
  • M
  • F
Mobile Advertiser ID madid We support 2 types of mobile advertiser IDs: Android’s Advertising ID (AAID), which Google provides as part of Android advertising, and Apple’s Advertising Identifier (IDFA), which Apple provides as part of iOS in its ads framework.
  • AECE52E7-03EE-455A-B3C4-E57283966239
  • BEBE52E7-03EE-455A-B3C4-E57283966239
Facebook App User ID uid An ID corresponding to someone who uses an app that can be retrieved through the Facebook SDK. We support numerical user IDs associated with your facebook application.
  • 1234567890
  • 1443637309

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