Agent Scripting JSON payload fails with 400 during Zendesk migration

Configuration is broken for some reason…

Background

Migrating Zendesk macros to Genesys Cloud agent scripts. Trying to map ticket tags to GC interactions via a REST API block.

Issue

The flow returns a 400 Bad Request when the JSON body exceeds 2KB. Zendesk handles larger payloads natively, but GC seems strict here.

Troubleshooting

  • Verified API key permissions in Admin.
  • Tested with smaller payloads (under 1KB) - works fine.
  • Using Genesys Cloud API v2 endpoints.