LinkedIn Conversions API

The LinkedIn integration streams every recorded click to a conversion rule in your ad account, so link clicks appear as conversions on the campaigns attached to that rule. Available on Growth and Ultimate.

What you need

• A conversion rule in Campaign Manager with Direct API as its data source, attached to the campaigns you want to measure.
• An access token: Campaign Manager → Data → Signals Manager → Direct API → Generate access token. LinkedIn shows it once, so copy it straight away.

Connect it to Letlink

1. Open Integrations → LinkedIn Conversions API. Owners and admins only.
2. Paste the conversion rule ID (the number at the end of the rule's URN) and the access token, then save.
3. Press Send test event to confirm LinkedIn accepts the token and the rule.

What we send

One event per recorded click: the conversion rule, conversionHappenedAt in milliseconds, a stable eventId (click-<id>), and as user identifiers the visitor IP plus li_fat_id when there is one. LinkedIn only attributes events it can match, so expect fewer conversions than clicks.

How clicks are matched to your ads

With enhanced conversion tracking turned on in Campaign Manager, LinkedIn adds li_fat_id to the URL of an ad click. When your ad points straight at a short link, Letlink reads it from the request and sends it with the event.