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Linked In Ads: How to automatically add parameter 'li_fat_id' to our ad's urls?

Jesse 0 Reputation points
2025-12-10T17:44:16.4333333+00:00

Hi,

Currently we are trying to gather conversion information from our website and stream them directly to the LinkedIn Conversion API. We do NOT want to install an insight tag, because we have sensitive user data that we need to securely deal with.

It seems from my reading that the parameter 'li_fat_id' is crucial when dealing with the LinkedIn Conversion API, and in our case it would be the only or best way to include any sort of user information in streaming the conversion event, which of course is necessary for proper attribution to the correct campaigns.

The problem is, when our ads are generating the urls, the 'li_fat_id' parameter is missing. Full stop.

I have looked at this guide: https://www.linkedin.com/help/lms/answer/a423304 and done the required steps ( 1. Add insight tag, 2. Enable enhanced conversion tracking ). But still there is no click id's being appended to the ad's urls. I have done a lot of reading and investigation but haven't come up with anything in order to fix this.

Any ideas?

Microsoft Advertising API
Microsoft Advertising API
A Microsoft API that provides programmatic access to Microsoft Advertising to manage large campaigns or to integrate your marketing with other in-house systems.
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  1. MS Advertising - Jefferson 310 Reputation points Microsoft External Staff Moderator
    2025-12-10T20:26:18.6366667+00:00

    Hello Jesse,

    Thank you for reaching out to the Microsoft Advertising Learn Q&A Platform! My name is Jefferson, and I will be assisting you with this query.

    I understand that your concern is about setting up the right parameters so that the li_fat_id is properly added to your LinkedIn ad URLs. This identifier is important for accurate tracking, and I want to make sure you get the right support to resolve this smoothly.

    The best next step is to reach out directly to LinkedIn Ads Support, as they can look into your account settings and guide you through the process. You can create a support ticket using this link: https://www.linkedin.com/help/lms. Once submitted, their team will be able to provide tailored assistance and ensure everything is configured correctly.

    We appreciate your patience and want to make sure you get the help you need to get this working without delay.

    Thank you so much and have a great day!

    Kind regards,

    Jefferson| Microsoft Advertising Support Specialist | 1-800-518-5689

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