Conversions API: New hashedFirstName and hashedLastName fields (September 2026 - Version 202609)

Tracking & signal lossEffective n/a

New hashedFirstName and hashedLastName fields : Starting with the 202609 version, the userInfo object for the /conversionEvents endpoint supports two new optional fields for matching: hashedFirstName and hashedLastName , in addition to the existing plain text firstName and lastName fields.

Summary extracted from the official source text. Verify details on the source page.

PlatformLinkedIn Marketing API
Effective dateNo date published
Precisionn/a
Published2026-09
CategoriesTracking & signal loss
Tagsversion-202609
Official sourceLinkedIn Marketing API: Recent changes ↗
Fetched2026-10-17T03:44:00+00:00
First seen2026-10-17T01:06:52+00:00
StatusListed by the source
Stable IDlinkedin-ef69363144 · JSON