Need some troubleshooting help with a 400 Bad Request error when using the Set Variable action in Architect. I am migrating a Zendesk ticket creation flow to Genesys Cloud and trying to map the legacy Zendesk ticket_id to a Genesys Interaction variable, but the flow fails immediately upon hitting the Set Variable step with a validation error on the JSON payload structure. The input schema expects a specific string format that my Zendesk webhook payload does not provide natively. Is there a standard way to sanitize or convert this incoming data within the Architect flow before assignment, or should I handle this transformation in the external integration layer instead?
This seems like a classic data type mismatch issue when bridging Zendesk’s integer-based identifiers with Genesys Cloud’s string-strict variable schema. The Set Variable action in Architect is notoriously strict about schema validation, especially when dealing with external webhook payloads. Zendesk typically sends the id field as an integer, but if your target Genesys Interaction variable is defined as a string or if the subsequent ServiceNow Data Action expects a string representation of the ticket ID, the flow will throw a 400 Bad Request. To resolve this, you need to explicitly cast the integer to a string before the Set Variable action. Insert a Transform action immediately before the Set Variable step. In the Transform action, use the string() function to convert the Zendesk ID. For example, set the input variable to {{$.zendesk.ticket.id}} and apply the transformation string(input). Then, map this transformed output to your Genesys Interaction variable. This ensures the payload structure aligns with the expected string format. Additionally, verify that your ServiceNow Data Action configuration in Genesys Cloud is correctly mapping this Interaction variable to the incident.external_id or similar field. If you are still seeing errors, check the raw JSON payload in the Architect flow logs. Look for any nested objects that might be causing serialization issues. The documentation for Data Actions emphasizes that all external identifiers must be properly formatted strings to avoid validation failures. This approach has consistently worked for integrating Zendesk ticket IDs into ServiceNow incidents via Genesys Cloud Data Actions. Ensure your webhook listener in Genesys Cloud is also configured to accept the correct content type from Zendesk.