LinkedIn Conversions API

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B2B Offline Attribution - Track Leads, Signups & Purchases on LinkedIn

Send offline conversions to LinkedIn Conversions API for B2B campaign attribution. Track leads, signups, and purchases with automatic email hashing.

Features

Conversion Sending

• send_conversion - Send a single conversion event
• send_batch_conversions - Send multiple conversions

Conversion Rules

• list_conversion_rules - List all conversion rules
• get_conversion_rule - Get rule details
• create_conversion_rule - Create new conversion rule
• get_conversion_stats - Get conversion statistics

Conversion Types

Type	Description
PURCHASE	Completed transaction
LEAD	Lead form submission
SIGN_UP	Account registration
KEY_PAGE_VIEW	Important page visit
ADD_TO_CART	Item added to cart
INSTALL	App installation
DOWNLOAD	Content download
OTHER	Custom conversion

User Matching

LinkedIn matches conversions using:

1. li_fat_id - LinkedIn first-party cookie (best)
2. email - Hashed email address
3. acrossDeviceId - Cross-device ID

LinkedIn First-Party ID

Capture from li_fat_id cookie on your site after LinkedIn ad click.

Conversion Data

{
  "task": "send_conversion",
  "conversionRuleId": "urn:li:llaPartnerConversion:12345",
  "email": "john@company.com",
  "linkedinFirstPartyId": "abc123",
  "conversionHappenedAt": 1705761000000,
  "conversionValue": 5000.00,
  "currencyCode": "USD",
  "eventId": "evt-12345"
}

Conversion Rules

Before sending conversions, create a conversion rule:

1. Use list_conversion_rules to find existing
2. Or create_conversion_rule to create new

Rules define:

• Conversion name and type
• Attribution window
• Value tracking settings

Batch Upload

{
  "task": "send_batch_conversions",
  "conversions": [
    {
      "conversionRuleId": "urn:li:llaPartnerConversion:12345",
      "email": "john@company.com",
      "conversionValue": 5000.00,
      "eventId": "evt-001"
    },
    {
      "conversionRuleId": "urn:li:llaPartnerConversion:12345",
      "email": "jane@enterprise.com",
      "conversionValue": 10000.00,
      "eventId": "evt-002"
    }
  ]
}

B2B Best Practices

1. Use business emails - Personal emails match poorly
2. Capture li_fat_id - Best match rate
3. Include event IDs - Prevent duplicates
4. Track high-value conversions - Deals, demos, trials

Match Rates

Typical B2B match rates:

• li_fat_id: 70-90%
• Business email: 40-60%
• Personal email: 10-20%

Attribution Windows

LinkedIn uses click-through attribution:

• Default: 30 days post-click
• View-through: 7 days post-view

Pricing

$0.01 per query (all tasks)

Rate Limits

• 100 API calls per day per app
• 10,000 conversions per batch
• Conversions within 90 days