Websocket response: InteractionModelError: ConstraintError (0x87)

[lboue]

Hello,

I am sending a Webscoket device_command and I am getting an error.
Do you know what this InteractionModelError: ConstraintError (0x87) mean?

{
  "message_id": "example",
  "command": "device_command",
  "args": {
    "endpoint_id": 0,
    "node_id": 14,
    "payload": { 
        "EnableKey": "hex:000102030405060708090a0b0c0d0e0f",
        "EventTrigger": "0x0094000000000003"
    },
    "cluster_id": 51,
    "command_name": "TestEventTrigger"
  }
}

Response

{
  "message_id": "example",
  "error_code": 0,
  "details": "InteractionModelError: ConstraintError (0x87)"
}

The goal is to call TestEventTrigger command from DiagnosticsGeneral cluster:

DiagnosticsGeneral.xml#L270

    <command id="0x00" name="TestEventTrigger" direction="commandToServer" response="Y">
      <access invokePrivilege="manage"/>
      <mandatoryConform/>
      <field id="0" name="EnableKey" type="octstr">
        <mandatoryConform/>
        <constraint type="maxLength" value="16"/>
      </field>
      <field id="1" name="EventTrigger" type="uint64">
        <mandatoryConform/>
      </field>
    </command>

[lboue]

This works correctly with the chip-tool binary:

chip-tool pairing code 100 24380548507
chip-tool generaldiagnostics test-event-trigger hex:000102030405060708090a0b0c0d0e0f 0x0094000000000003 100 0