Architect Flow fails when mapping Zendesk Custom Ticket Fields

Quick question, has anyone seen this weird error? with Error 400: Invalid Data Type when trying to replicate a Zendesk custom field in a Genesys Cloud Architect flow.

We are migrating a support queue that relies heavily on custom ticket tags from Zendesk. In Zendesk, these are simple string values, but when we try to set them via the ‘Set user attribute’ block in Architect, the flow errors out immediately.

“Attribute value ‘High_Urgency’ does not match expected schema for attribute ‘z_ticket_priority’.”

The attribute was created in the Admin panel as a String type, so it should accept this value. I have checked the data type in the Zendesk export CSV and it is definitely a string. Is there a specific naming convention or prefix required for attributes that map directly to Zendesk ticket fields during migration?

Also, the timezone setting in my admin profile is Europe/Paris, but the error log timestamp seems to be in UTC. Could this be causing a mismatch in how the flow engine processes the string? We are using the latest Architect version. Any tips on getting these custom fields to pass through without throwing a 400?