> ## Documentation Index > Fetch the complete documentation index at: https://docs.periskope.app/llms.txt > Use this file to discover all available pages before exploring further. # Create Custom Property > Creates a custom property for chats or tickets. Options apply to dropdown and picklist kinds. ## OpenAPI ````yaml api-reference/openapi-generated.json POST /v1/properties/create openapi: 3.0.3 info: title: Periskope API version: 1.0.0 description: >- Periskope external API. Responses use a flat, unwrapped shape: most endpoints return the resource at the top level, and list endpoints return a wrapper object with pagination inline (e.g. `{ from, to, count, chats: [...] }`). The documented response schemas describe these shapes directly. servers: - url: https://api.periskope.app security: - bearerAuth: [] paths: /v1/properties/create: post: tags: - Properties summary: Create a custom property description: >- Creates a custom property for chats or tickets. Options apply to dropdown and picklist kinds. operationId: createProperty requestBody: content: application/json: schema: type: object properties: name: type: string minLength: 1 description: >- Name of the property. Must be unique within its type (compared case-insensitively, stored trimmed) — the same name can exist once as a chat property and once as a ticket property. example: Workspace type: type: string enum: - chat - ticket description: >- Whether the property appears on chats ('chat') or on tickets ('ticket') example: ticket kind: type: string enum: - text - date - file - dropdown - picklist description: >- Value kind of the property: 'text', 'date', 'file', 'dropdown' (single choice from options) or 'picklist' (multiple choices from options). The 'dependent_dropdown' kind cannot be created via the API. example: dropdown section: type: string description: >- Name of the section to place the property under — sections group properties in the dashboard. Matched case-insensitively against existing sections of the same type; created automatically if it does not exist. example: Issue Details mandatory: type: boolean description: >- Whether the property must be filled in. Supported only for ticket properties — mandatory: true for a chat property is rejected. Defaults to false. example: false options: type: array items: type: string description: >- Initial option labels. Required (at least one non-empty label) for dropdown and picklist kinds; not allowed for other kinds. Duplicate labels (case-insensitive) are collapsed into one option. example: - Example Corp - Globex required: - name - type - kind responses: '200': description: The created property content: application/json: schema: type: object properties: success: type: boolean enum: - true description: Always true when the property was created message: type: string description: Human-readable confirmation message example: Custom property created data: $ref: '#/components/schemas/CustomProperty' examples: default: summary: Response body value: success: true message: Custom property created data: property_id: property-aaaaaaaaaaaa property_name: Workspace type: ticket kind: dropdown mandatory: false section_id: 00000000-0000-0000-0000-000000000000 section_name: Issue Details options: - id: '1755859200000' label: Example Corp - id: '1755859200001' label: Globex created_at: '2026-01-15T09:30:00.000Z' '401': description: Invalid, expired or missing API token content: application/json: examples: error: summary: Invalid, expired or missing API token value: code: UNAUTHORIZED_ERROR message: Invalid bearer auth token status: 401 schema: type: object properties: code: type: string example: UNAUTHORIZED_ERROR message: type: string example: Invalid bearer auth token status: type: integer example: 401 example: code: UNAUTHORIZED_ERROR message: Invalid bearer auth token status: 401 '409': description: A custom property with the same name already exists for the type content: application/json: examples: error: summary: >- A custom property with the same name already exists for the type value: code: CONFLICT_ERROR message: >- A custom property with the same name already exists for the type status: 409 schema: type: object properties: code: type: string example: CONFLICT_ERROR message: type: string example: >- A custom property with the same name already exists for the type status: type: integer example: 409 example: code: CONFLICT_ERROR message: >- A custom property with the same name already exists for the type status: 409 '422': description: Request validation failed content: application/json: examples: error: summary: Request validation failed value: code: VALIDATION_ERROR message: Request validation failed status: 422 fields: body.chat_id: message: chat_id is required schema: type: object properties: code: type: string example: VALIDATION_ERROR message: type: string example: Request validation failed status: type: integer example: 422 fields: type: object additionalProperties: type: object properties: message: type: string value: {} example: body.chat_id: message: chat_id is required example: code: VALIDATION_ERROR message: Request validation failed status: 422 fields: body.chat_id: message: chat_id is required '429': description: Rate limit exceeded content: application/json: examples: error: summary: Rate limit exceeded value: code: RATE_LIMIT_ERROR message: You can only make 100 requests per second status: 429 schema: type: object properties: code: type: string example: RATE_LIMIT_ERROR message: type: string example: You can only make 100 requests per second status: type: integer example: 429 example: code: RATE_LIMIT_ERROR message: You can only make 100 requests per second status: 429 '500': description: Internal server error content: application/json: examples: error: summary: Internal server error value: code: UNKNOWN_ERROR message: Internal server error status: 500 schema: type: object properties: code: type: string example: UNKNOWN_ERROR message: type: string example: Internal server error status: type: integer example: 500 example: code: UNKNOWN_ERROR message: Internal server error status: 500 security: - bearerAuth: [] x-codeSamples: - lang: typescript label: TypeScript source: |- import { PeriskopeApi } from '@periskope/periskope-client'; const client = new PeriskopeApi({ authToken: 'YOUR_API_KEY', }); async function main() { const response = await client.properties.createProperty({ name: 'Workspace', type: 'ticket', kind: 'dropdown', }); console.log(response); } main(); - lang: bash label: cURL source: |- curl -X POST 'https://api.periskope.app/v1/properties/create' \ -H 'Authorization: Bearer YOUR_API_KEY' \ -H 'Content-Type: application/json' \ -d '{ "name": "Workspace", "type": "ticket", "kind": "dropdown" }' components: schemas: CustomProperty: type: object properties: property_id: type: string description: >- Unique id of the custom property (property-xxxxxxxxxxxxxxxx). Accepted wherever a property_id path parameter or property reference is expected. example: property-aaaaaaaaaaaa property_name: type: string description: >- Name of the property. Unique within its type (case-insensitive) — the same name can exist once as a chat property and once as a ticket property. example: Workspace type: type: string enum: - chat - ticket description: >- Whether the property applies to chats ('chat') or to tickets ('ticket') example: ticket kind: type: string description: >- Value kind of the property: 'text', 'date', 'file', 'dropdown' (single choice), 'picklist' (multiple choice) or 'dependent_dropdown' (dashboard-created only — cannot be created via the API) example: dropdown mandatory: type: boolean description: >- Whether the property must be filled in. Always false for chat properties — only ticket properties can be mandatory. example: false section_id: type: string description: >- Id of the section the property is placed under. null when the property is not in any section. example: 00000000-0000-0000-0000-000000000000 section_name: type: string description: >- Name of the section the property is placed under. null when the property is not in any section. example: Issue Details options: type: array items: $ref: '#/components/schemas/CustomPropertyOption' description: >- Options of the property as {id, label} pairs. Present only for dropdown and picklist kinds — omitted for every other kind. example: - id: '1755859200000' label: Example Corp - id: '1755859200001' label: Globex created_at: type: string description: When the property was created, as an ISO 8601 timestamp example: '2026-01-15T09:30:00.000Z' description: The created property CustomPropertyOption: type: object properties: id: type: string description: >- Id of the option, unique within the property. Stable for the lifetime of the option — store it instead of the label when syncing with an external system. Accepted in place of the label when removing options. example: '1755859200000' label: type: string description: Display label of the option example: Example Corp securitySchemes: bearerAuth: type: http scheme: bearer description: >- Your Periskope API token, sent as `Authorization: Bearer `. Generate one from the Periskope dashboard under **Settings → API & Webhooks**. API access requires an active Pro or Enterprise plan. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.