B2B inbound series · 2025

Offline Conversions

CRM signals ad platforms trust

VertoDigital VertoDigital
Ebook

The offline conversion your ad platforms can actually use

A practical guide to defining, capturing, and matching offline conversions - so CRM data feeds smart bidding with a signal that filters for quality, comes in volume, and lands close to real-time.

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What's inside

Four chapters on defining, tracking, and collecting offline conversions that actually improve smart bidding.

01 Why offline conversions need to be part of any B2B inbound strategy
02 How to define your offline conversions - lifecycle stages and custom ICP criteria
03 Defining offline conversion tracking - ClickID matching across ad platforms
04 How to collect offline conversions - capture, persist, and choose your stack

32%

of conversions risk going unattributed due to missing ClickIDs, based on a pool of three B2B accounts (2023-2024)

Who it's for

  • CMOs and VPs of Marketing who need pipeline signals ad platforms can actually bid on.
  • RevOps and marketing-ops leads building or auditing the CRM-to-ad-platform data flow.
  • B2B teams running Google, LinkedIn, Microsoft, or Facebook Ads for demand gen.

How ClickID matching works across ad platforms

Every offline conversion needs a ClickID - the unique identifier an ad platform attaches to a click's URL - to match a later CRM event back to the ad, campaign, and keyword that drove it. Each platform uses its own parameter and its own required fields, so the same CRM event has to be formatted differently depending on where it's headed.

Platform ClickID Required to match Optional parameters
Google Ads gclid ClickID, conversion name, timestamp Conversion value
LinkedIn Ads lin_fat_id Conversion name First name, last name, company name, email, phone number, job title, timestamp
Microsoft (Bing) Ads msclkid ClickID, conversion name, timestamp Conversion value
Facebook Ads fbclid ClickID, conversion name, conversion value, timestamp First name, last name, email, phone number

Frequently asked questions

What is a ClickID?
A ClickID is a unique identifier - gclid for Google Ads, fbclid for Facebook, msclkid for Microsoft, lin_fat_id for LinkedIn - that an ad platform attaches as a querystring parameter when someone clicks an ad. It encodes the campaign, targeting, and ad details behind that click, so a later CRM event can be matched back to the exact ad that drove it.
Is the MQL stage a good offline conversion to track?
Sometimes. MQL scoring based on behavior (page views, email opens) introduces reporting delay and inconsistent volume - 8 out of 10 MOps lifecycle journeys we review aren't structured for it. MQL works as an offline conversion only when the scoring is attribute-based (job title, company size) rather than behavior-based; otherwise, a custom ICP Lead conversion is more reliable.
Native connectors or third-party connectors - which should I use?
Native connectors (HubSpot, Marketo, Pardot) are the fastest to set up - a few minutes over OAuth - but ad platform API restrictions around conversion timestamps mean fewer conversions actually match. Third-party connectors (Zapier, HighTouch, Segment) let you control the delay and timestamp before uploading, which is why they've matched up to 73% more conversions in our client accounts.