Requirements for contact targeting lists in Campaign Manager

Last updated: 5 months ago

You can use contact targeting to build audience segments based on contact information you upload to Campaign Manager, so you can tailor your advertising campaigns to target your priority contacts. Contact lists are part of LinkedIn’s Matched Audiences.

Here's a tip

If you select a contact list when building your campaign audience, you can refine your audience by choosing additional targeting attributes, such as job function or seniority.

When uploading your company lists, they need to adhere to LinkedIn's formatting guidelines or the upload won’t be successful.  

Requirements when populating your template

When populating your template, keep in mind: 

  • Don’t change or remove the headers. When populating a template, add your own list below the headers provided. Changing or removing template headers will cause an error when you upload your audience. 
  • Your uploaded list must have at least 300 rows for a successful upload. 
  • Your list must reach a minimum of 300 matched members for your campaign to serve, regardless of how many emails are in your list. 
  • The maximum list size is 20 MB or 300,000 records. 
  • It may take up to 48 hours (on rare occasions, longer) to generate your audience. 
  • You don’t need to complete every field for each contact added to your list. The template provides the option for several types of information to help you accurately build your audience, but you can keep any field blank where you may not have information. We’ll match contacts based on the information provided in each row below the template headers. 
  • We only support CSV file uploads.

Tips for your contact targeting list

A few tips for your contact targeting list: 

  • We recommend uploading lists with at least 10,000 personal or professional email addresses to help ensure your list matches with at least 300 verified email addresses on LinkedIn.  
  • When selecting targeting facets for your campaign audience, contact lists may not be used with member interests and traits.
  • If you're using special characters, save the file encoded to UTF-8 to help ensure successful upload.

Requirements to match your list to LinkedIn members

To match your list to LinkedIn members, we require at least one of the following: 

  • Email address - Email addresses included in your list can be regular (unhashed) email addresses or a list of hashed email addresses using SHA-256. If the list of email addresses isn't hashed, it'll be locally hashed in your browser before it’s saved. In either case, make sure your list header is email. 
  • First and last name - When providing first and last name, you can also provide the individual’s company name for more accurate matching. 
  • Mobile device ID for Google AID 
    • Mobile device IDs are unique user-resettable identifiers provided by the mobile device’s operating system. Mobile device IDs can be used to build an audience based on mobile app activity. 
    • If you have more than one ID type associated with each user (such as email and mobile device ID), provide all the IDs you have. This will improve the probability of matching to a member.

Here's a tip

Email address is the only field that allows you to include hashed values.

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