> ## Documentation Index > Fetch the complete documentation index at: https://docs.tolt.com/llms.txt > Use this file to discover all available pages before exploring further. # Update a promotion code > Updates a promotion code's code, discount type or value. ## OpenAPI ````yaml /api-reference/openapi.json put /v2/promotion-codes/{id} openapi: 3.1.0 info: title: Tolt Public API version: 2.0.0 servers: - url: https://platform.tolt.dev description: Development security: - bearerAuth: [] paths: /v2/promotion-codes/{id}: put: tags: - PromotionCodes summary: Update a promotion code description: Updates a promotion code's code, discount type or value. operationId: updatePromotionCode parameters: - schema: type: string example: promo_gTCAUsWfdmN2GuCVRaHWNRan required: true name: id in: path requestBody: required: true content: application/json: schema: type: object properties: code: type: string minLength: 1 maxLength: 255 description: >- The discount code as customers enter it at checkout. Customers and payments that use it are attributed to the code's partner. A partner cannot have the same code twice, ignoring case. type: type: - string - 'null' enum: - fixed - percentage - null description: Whether value is a percent off or a fixed amount off. value: type: - string - 'null' maxLength: 255 description: >- Size of the discount as a plain decimal: a percent from 0 to 100 for percentage codes ("20" is 20%), or an amount from 0 to 1,000,000 in major units of the program currency for fixed codes ("20" is 20.00). null clears it. minProperties: 1 example: code: SAM20 type: percentage value: '20' responses: '200': description: The updated promotion code content: application/json: schema: type: object properties: success: type: boolean example: true message: type: string example: Request successful data: $ref: '#/components/schemas/PromotionCode' required: - success - message - data example: success: true message: Successfully updated promotion code data: id: promo_gTCAUsWfdmN2GuCVRaHWNRan code: SAM20 type: percentage value: '20' duration: forever duration_in_months: null active: true entity_type: partner external_id: null partner_id: part_NLYzgNKuSuASvrvoxNtau6SY program_id: prg_T6z8aRW3XCmvFWP972RKxpAd group_id: null created_at: '2026-10-01T12:00:00Z' updated_at: '2026-10-01T12:00:00Z' headers: X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' '400': description: Invalid request content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false message: 'request: Invalid input: expected object, received null' code: validation_error doc_url: https://docs.tolt.com/errors#validation_error errors: - field: request message: 'Invalid input: expected object, received null' headers: X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' '401': description: Missing or invalid API key content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false message: Unauthorized code: unauthorized doc_url: https://docs.tolt.com/errors#unauthorized '404': description: Promotion code not found content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false message: Promotion code not found code: not_found doc_url: https://docs.tolt.com/errors#not_found headers: X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' '409': description: The partner already has this promotion code content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false message: The partner already has this promotion code code: already_exists doc_url: https://docs.tolt.com/errors#already_exists errors: - field: code message: The partner already has this promotion code headers: X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' '413': $ref: '#/components/responses/PayloadTooLarge' '429': $ref: '#/components/responses/RateLimited' components: schemas: PromotionCode: type: object properties: id: type: string example: promo_gTCAUsWfdmN2GuCVRaHWNRan code: type: - string - 'null' example: SAM20 type: type: - string - 'null' example: percentage value: type: - string - 'null' example: '20' duration: type: string example: forever duration_in_months: type: - string - 'null' example: null active: type: - boolean - 'null' example: true entity_type: type: - string - 'null' example: partner external_id: type: - string - 'null' example: null partner_id: type: - string - 'null' example: part_NLYzgNKuSuASvrvoxNtau6SY program_id: type: - string - 'null' example: prg_T6z8aRW3XCmvFWP972RKxpAd group_id: type: - string - 'null' example: null created_at: type: string format: date-time example: '2026-10-01T12:00:00Z' updated_at: type: string format: date-time example: '2026-10-01T12:00:00Z' required: - id - code - type - value - duration - duration_in_months - active - entity_type - external_id - partner_id - program_id - group_id - created_at - updated_at Error: type: object properties: success: type: boolean example: false message: type: string description: Human-readable explanation. May change; branch on code instead. code: type: string enum: - bad_request - validation_error - invalid_reference - invalid_cursor - unauthorized - forbidden - not_found - conflict - already_exists - commission_paid - commission_frozen - transaction_refunded - commission_exists - rate_limited - payload_too_large - internal_error description: Stable machine-readable error code. example: not_found doc_url: type: string example: https://docs.tolt.com/errors#not_found errors: type: array items: type: object properties: field: type: string message: type: string required: - field - message description: >- One entry per offending field. Present on validation_error and invalid_reference. required: - success - message - code - doc_url headers: X-RateLimit-Limit: description: Requests allowed in the current window. schema: type: integer X-RateLimit-Remaining: description: Requests left in the current window. schema: type: integer X-RateLimit-Reset: description: Unix time, in seconds, when the window resets. schema: type: integer Retry-After: description: Seconds to wait before retrying. schema: type: integer responses: PayloadTooLarge: description: Request body exceeds 1 MB content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false message: Request body exceeds 1 MB code: payload_too_large doc_url: https://docs.tolt.com/errors#payload_too_large RateLimited: description: The API key exceeded its rate limit headers: X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' Retry-After: $ref: '#/components/headers/Retry-After' content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false message: Too many requests. Retry after the window resets. code: rate_limited doc_url: https://docs.tolt.com/errors#rate_limited securitySchemes: bearerAuth: type: http scheme: bearer description: Tolt API key sent as a bearer token. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.