I’m trying to update skill proficiencies for a batch of agents via the CXone Admin API. I’ve got the .NET SDK working for single updates, but the bulk endpoint is giving me grief.
The docs say I should use PUT /api/v2/admin/agents/skills/proficiencies/bulk.
Here is the JSON payload I’m sending:
[
{
"agentId": "12345678-1234-1234-1234-123456789012",
"skillId": "87654321-4321-4321-4321-210987654321",
"proficiency": "expert"
},
{
"agentId": "12345678-1234-1234-1234-123456789013",
"skillId": "87654321-4321-4321-4321-210987654321",
"proficiency": "intermediate"
}
]
I’m getting a 400 Bad Request back. The error message is pretty vague:
"message": "Invalid input provided for one or more fields"
I’ve checked the IDs, they are valid. The proficiency values match the enum in the Swagger spec. Is there a specific format for the bulk array? Or does the CXone API require a wrapper object around the array?
I tried wrapping it in { "proficiencies": [...] } but that just gave me a 415 Unsupported Media Type.
What am I missing here?
That endpoint is notoriously picky about the request body structure. You’re sending a raw array, but the CXone API usually expects a wrapper object for bulk admin operations, especially when dealing with skill proficiencies. The 400 Bad Request typically means the schema validation failed because it didn’t find the expected root object.
Try wrapping your array in a proficiencies property. Also, double-check that you’re using the correct OAuth scope (admin:agent:write and admin:skill:write). Here’s how the payload should look:
{
"proficiencies": [
{
"agentId": "12345678-1234-1234-1234-123456789012",
"skillId": "87654321-4321-4321-4321-210987654321",
"proficiency": 5
}
]
}
In Node.js, you’d construct this using the BulkUpdateAgentSkillsProficienciesRequest model from the SDK. It handles the nesting for you. If you’re hitting it via raw HTTP, the wrapper is mandatory. Don’t forget to set the Content-Type header to application/json.
Also, watch out for rate limits. Bulk updates can trigger them if you’re pushing too many agents at once. Chunking your requests usually helps.