> ## Documentation Index > Fetch the complete documentation index at: https://dub.co/llms.txt > Use this file to discover all available pages before exploring further. # Send a message to a partner > Send a direct message from your partner program to a partner. Until the partner replies, you can only send one message to a partner who isn't enrolled in your program. Sending a message marks the partner's unread messages to your program as read. You can send up to 10 messages a minute to the same partner. ## OpenAPI ````yaml post /messages openapi: 3.0.3 info: title: Dub API description: >- Dub is the modern link attribution platform for short links, conversion tracking, and affiliate programs. version: 0.0.1 contact: name: Dub Support email: support@dub.co url: https://dub.co/support license: name: AGPL-3.0 license url: https://github.com/dubinc/dub/blob/main/LICENSE.md servers: - url: https://api.dub.co description: Production API security: [] paths: /messages: post: tags: - Messages summary: Send a message to a partner description: >- Send a direct message from your partner program to a partner. Until the partner replies, you can only send one message to a partner who isn't enrolled in your program. Sending a message marks the partner's unread messages to your program as read. You can send up to 10 messages a minute to the same partner. operationId: createMessage requestBody: content: application/json: schema: type: object properties: partnerId: description: >- The ID of the partner to message. Takes precedence over `tenantId` if both are provided. nullable: true type: string tenantId: description: >- The ID of the partner in your system. If both `partnerId` and `tenantId` are not provided, an error will be thrown. nullable: true type: string text: type: string minLength: 1 maxLength: 2000 description: The text of the message. required: - text responses: '201': description: The sent message. content: application/json: schema: type: object properties: id: type: string text: type: string readInApp: nullable: true type: string readInEmail: nullable: true type: string createdAt: type: string updatedAt: type: string attachments: type: array items: type: object properties: name: type: string size: type: number type: type: string url: type: string description: A download link that expires after 1 hour. required: - name - size - type - url additionalProperties: false sourceType: type: string enum: - program - partner description: Whether your program or the partner sent the message. partner: type: object properties: id: type: string description: The partner's unique ID on Dub. name: type: string maxLength: 190 description: The partner's full legal name. email: nullable: true description: >- The partner's email address. Should be a unique value across Dub. type: string maxLength: 190 image: nullable: true description: The partner's avatar image. type: string required: - id - name - email - image additionalProperties: false description: >- The partner in the conversation. `email` is `null` for partners from the network who haven't joined your program. required: - id - text - readInApp - readInEmail - createdAt - updatedAt - attachments - sourceType - partner additionalProperties: false '400': $ref: '#/components/responses/400' '401': $ref: '#/components/responses/401' '403': $ref: '#/components/responses/403' '404': $ref: '#/components/responses/404' '409': $ref: '#/components/responses/409' '410': $ref: '#/components/responses/410' '422': $ref: '#/components/responses/422' '429': $ref: '#/components/responses/429' '500': $ref: '#/components/responses/500' security: - token: [] components: responses: '400': description: >- The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing). content: application/json: schema: x-speakeasy-name-override: BadRequest type: object properties: error: type: object properties: code: type: string enum: - bad_request description: A short code indicating the error code returned. example: bad_request message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: https://dub.co/docs/api-reference/errors#bad-request required: - code - message required: - error '401': description: >- Although the HTTP standard specifies "unauthorized", semantically this response means "unauthenticated". That is, the client must authenticate itself to get the requested response. content: application/json: schema: x-speakeasy-name-override: Unauthorized type: object properties: error: type: object properties: code: type: string enum: - unauthorized description: A short code indicating the error code returned. example: unauthorized message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: https://dub.co/docs/api-reference/errors#unauthorized required: - code - message required: - error '403': description: >- The client does not have access rights to the content; that is, it is unauthorized, so the server is refusing to give the requested resource. Unlike 401 Unauthorized, the client's identity is known to the server. content: application/json: schema: x-speakeasy-name-override: Forbidden type: object properties: error: type: object properties: code: type: string enum: - forbidden description: A short code indicating the error code returned. example: forbidden message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: https://dub.co/docs/api-reference/errors#forbidden required: - code - message required: - error '404': description: The server cannot find the requested resource. content: application/json: schema: x-speakeasy-name-override: NotFound type: object properties: error: type: object properties: code: type: string enum: - not_found description: A short code indicating the error code returned. example: not_found message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: https://dub.co/docs/api-reference/errors#not-found required: - code - message required: - error '409': description: >- This response is sent when a request conflicts with the current state of the server. content: application/json: schema: x-speakeasy-name-override: Conflict type: object properties: error: type: object properties: code: type: string enum: - conflict description: A short code indicating the error code returned. example: conflict message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: https://dub.co/docs/api-reference/errors#conflict required: - code - message required: - error '410': description: >- This response is sent when the requested content has been permanently deleted from server, with no forwarding address. content: application/json: schema: x-speakeasy-name-override: InviteExpired type: object properties: error: type: object properties: code: type: string enum: - invite_expired description: A short code indicating the error code returned. example: invite_expired message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: https://dub.co/docs/api-reference/errors#invite-expired required: - code - message required: - error '422': description: >- The request was well-formed but was unable to be followed due to semantic errors. content: application/json: schema: x-speakeasy-name-override: UnprocessableEntity type: object properties: error: type: object properties: code: type: string enum: - unprocessable_entity description: A short code indicating the error code returned. example: unprocessable_entity message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: >- https://dub.co/docs/api-reference/errors#unprocessable-entity required: - code - message required: - error '429': description: >- The user has sent too many requests in a given amount of time ("rate limiting") content: application/json: schema: x-speakeasy-name-override: RateLimitExceeded type: object properties: error: type: object properties: code: type: string enum: - rate_limit_exceeded description: A short code indicating the error code returned. example: rate_limit_exceeded message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: >- https://dub.co/docs/api-reference/errors#rate-limit_exceeded required: - code - message required: - error '500': description: The server has encountered a situation it does not know how to handle. content: application/json: schema: x-speakeasy-name-override: InternalServerError type: object properties: error: type: object properties: code: type: string enum: - internal_server_error description: A short code indicating the error code returned. example: internal_server_error message: x-speakeasy-error-message: true type: string description: A human readable explanation of what went wrong. example: The requested resource was not found. doc_url: type: string description: >- A link to our documentation with more details about this error code example: >- https://dub.co/docs/api-reference/errors#internal-server_error required: - code - message required: - error securitySchemes: token: type: http description: Default authentication mechanism scheme: bearer x-speakeasy-example: DUB_API_KEY ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.