What is the standard approach to map custom ServiceNow CMDB attributes to Genesys Cloud outbound call records via the Campaign API? We are attempting to push historical ticket data from ServiceNow into GC to enrich outbound campaigns, but the POST request to /api/v2/outbound/campaigns/{id}/contacts fails with a 422 Unprocessable Entity. The error payload indicates that the custom attribute sn_incident_priority is not recognized as a valid contact attribute, despite being defined in the custom attribute configuration. The webhook payload structure mirrors the standard contact schema, yet the validation rejects the nested object structure.
The integration logic relies on Data Actions to transform ServiceNow JSON into GC-compatible formats before ingestion. Cross-referencing the documentation suggests that custom attributes must be pre-registered in the Campaign settings, but the API response does not clarify if this registration requires a specific data type mapping. Has anyone successfully bridged ServiceNow incident fields to GC outbound contacts without encountering schema validation errors? The environment is running the latest stable API version, and permissions for outbound:campaign:write are confirmed.
This issue stems from the Campaign API expecting standard contact attributes rather than arbitrary custom fields in the initial POST payload. Try mapping the ServiceNow data to a supported extension attribute instead, using the structure below:
{
"phone_number": "+1234567890",
"attributes": {
"ext_sn_incident_priority": "high"
}
}
The root of the issue is likely a mismatch in how the API handles custom field definitions during high-throughput contact imports. The ext_ prefix mentioned above is correct for standard extensions, but ensure the attribute is actually published in the outbound settings before hitting the endpoint with concurrent requests.
How I usually solve this is by treating the contact attribute mapping like we handle Zendesk custom fields during migration. In Zendesk, you cannot just dump raw JSON into a ticket update without defining the custom field in the admin console first. The same strictness applies to Genesys Cloud Outbound. The ext_ prefix is correct for extension attributes, but the Campaign API will reject any attribute that hasn’t been explicitly declared in the Campaign’s attribute configuration.
Before retrying the POST request, verify that the attribute exists in the Campaign definition. You need to ensure the attribute is listed in the attributes array of the campaign object itself, not just the contact payload. Here is how the campaign configuration should look to accept that data:
{
"id": "your-campaign-id",
"name": "ServiceNow Sync Campaign",
"attributes": [
{
"id": "ext_sn_incident_priority",
"name": "SN Incident Priority",
"type": "STRING",
"display_name": "Incident Priority"
}
]
}
Once this attribute is defined in the campaign, the contact import will recognize ext_sn_incident_priority. This mirrors the Zendesk workflow where you must create the custom field object before assigning values to tickets. If you skip this step in GC, the API returns a 422 because it doesn’t know where to store the data.
Also, check if you are using the correct attribute type. ServiceNow priorities are often integers (1-5), but if you defined it as a STRING in GC, sending a numeric value might cause issues. Ensure the types match exactly.
- Campaign attribute definition in Admin Console
- Contact attribute type matching (String vs Integer)
- Outbound contact import validation rules
- Zendesk custom field vs GC extension attribute mapping
It depends, but typically the ext_ prefix is insufficient if the attribute lacks a formal definition in the Outbound contact schema. Check that sn_incident_priority is registered as a valid custom attribute in the campaign configuration, otherwise the API rejects the payload during the chain of custody validation.