> ## Documentation Index > Fetch the complete documentation index at: https://developers.chatwoot.com/llms.txt > Use this file to discover all available pages before exploring further. # Update custom attribute in Account > Update a custom attribute in account ## OpenAPI ````yaml https://raw.githubusercontent.com/chatwoot/chatwoot/develop/swagger/tag_groups/application_swagger.json patch /api/v1/accounts/{account_id}/custom_attribute_definitions/{id} openapi: 3.1.0 info: title: Chatwoot description: This is the API documentation for Chatwoot server. version: 1.1.0 termsOfService: https://www.chatwoot.com/terms-of-service/ contact: email: hello@chatwoot.com license: name: MIT License url: https://opensource.org/licenses/MIT servers: - url: https://app.chatwoot.com/ security: [] tags: - name: Account AgentBots description: Account-specific Agent Bots - name: Agents description: Agent management APIs - name: Canned Responses description: Pre-defined responses for common queries - name: Contacts description: Contact management APIs - name: Contact Labels description: Manage contact labels - name: Conversation Assignments description: Manage conversation assignments - name: Conversation Labels description: Manage conversation labels - name: Conversations description: Conversation management APIs - name: Custom Attributes description: Custom fields for contacts and conversations - name: Custom Filters description: Saved filters for conversations - name: Inboxes description: Communication channels setup - name: Integrations description: Third-party integrations - name: Labels description: Account label management APIs - name: Messages description: Message management APIs - name: Profile description: User profile APIs - name: Reports description: Analytics and reporting APIs - name: Teams description: Team management APIs - name: Webhooks description: Event notification webhooks - name: Automation Rule description: Workflow automation rules - name: Help Center description: Knowledge base management paths: /api/v1/accounts/{account_id}/custom_attribute_definitions/{id}: parameters: - $ref: '#/components/parameters/account_id' - name: id in: path schema: type: number description: ID of the custom attribute required: true patch: tags: - Custom Attributes summary: Update custom attribute in Account description: Update a custom attribute in account operationId: update-custom-attribute-in-account parameters: - in: path name: id schema: type: integer required: true description: The ID of the custom attribute to be updated. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/custom_attribute_create_update_payload' responses: '200': description: Success content: application/json: schema: $ref: '#/components/schemas/custom_attribute' '403': description: Access denied content: application/json: schema: $ref: '#/components/schemas/bad_request_error' '404': description: Agent not found content: application/json: schema: $ref: '#/components/schemas/bad_request_error' security: - userApiKey: [] components: parameters: account_id: in: path name: account_id schema: type: integer required: true description: The numeric ID of the account schemas: custom_attribute_create_update_payload: type: object properties: attribute_display_name: type: string description: Attribute display name example: Custom Attribute attribute_display_type: type: integer description: >- Attribute display type (text- 0, number- 1, currency- 2, percent- 3, link- 4, date- 5, list- 6, checkbox- 7) example: 0 attribute_description: type: string description: Attribute description example: This is a custom attribute attribute_key: type: string description: Attribute unique key value example: custom_attribute attribute_values: type: array description: Attribute values items: type: string example: - value1 - value2 attribute_model: type: integer description: Attribute type(conversation_attribute- 0, contact_attribute- 1) example: 0 regex_pattern: type: string description: >- Regex pattern (Only applicable for type- text). The regex pattern is used to validate the attribute value(s). example: ^[a-zA-Z0-9]+$ regex_cue: type: string description: >- Regex cue message (Only applicable for type- text). The cue message is shown when the regex pattern is not matched. example: Please enter a valid value custom_attribute: type: object properties: id: type: integer description: Identifier attribute_display_name: type: string description: Attribute display name attribute_display_type: type: string description: >- Attribute display type (text, number, currency, percent, link, date, list, checkbox) attribute_description: type: string description: Attribute description attribute_key: type: string description: Attribute unique key value regex_pattern: type: string description: Regex pattern regex_cue: type: string description: Regex cue attribute_values: type: string description: Attribute values attribute_model: type: string description: Attribute type(conversation_attribute/contact_attribute) default_value: type: string description: Attribute default value created_at: type: string description: The date and time when the custom attribute was created updated_at: type: string description: The date and time when the custom attribute was updated bad_request_error: title: data type: object properties: description: type: string errors: type: array items: $ref: '#/components/schemas/request_error' request_error: type: object properties: field: type: string message: type: string code: type: string securitySchemes: userApiKey: type: apiKey in: header name: api_access_token description: >- This token can be obtained by visiting the profile page or via rails console. Provides access to endpoints based on the user permissions levels. This token can be saved by an external system when user is created via API, to perform activities on behalf of the user. ````