How To Submit Deletion Requests Without UserId? – Twilio Support

Objective

This article explains how to delete end-user data or Engage profiles in Segment when an end-user does not have userId associated with their profile.

Product

Twilio Segment

Environment

Segment Console

User Account Permission/Role(s) Required

Workspace Owner or End User Privacy Admin

Procedure

Option 1: Stitch a User ID to delete an Engage profile

Send an identify call (e.g., via an HTTP API source) combining the user's existing anonymousId with a new userId.
Confirm the profile now displays the new userId.
Submit a standard GDPR deletion request using that userId.

Option 2: Request source-specific deletion of anonymousIds via Support

Submit a support ticket with the following information:

List of anonymous Ids
Time range (inclusive or exclusive start/end dates)
The source Ids

This cannot be done in the UI or via Public API. Support will submit the deletion request directly on your behalf.

Note: Manual deletions via Support using an anonymousId only remove data from internal Segment storage and will not propagate to downstream destinations.