> ## Documentation Index > Fetch the complete documentation index at: https://docs.passform.io/llms.txt > Use this file to discover all available pages before exploring further. # Update pass metadata > Updates only the metadata for a pass without triggering wallet notifications ## OpenAPI ````yaml /api-reference/openapi.json patch /v1/pass/{templateId}/{passId}/metadata openapi: 3.1.0 info: title: Passform API description: The Passform API for creating Google and Apple wallet passes version: 0.1.0 servers: - url: https://api.passform.io security: [] tags: - name: mcp description: Routes exposed via the MCP server at /mcp - name: auth description: Routes for managing API keys - name: templates description: >- Templates represent the appearance of a pass. They include information on things such as icons, images, colours and text. A template is used by a pass to define how the pass should look and behave. - name: passes description: >- A pass is an individual instance based on a template. It contains details that are specific to its instance. - name: apple description: >- Routes used by apple to update passes and manage devices associated to passes. externalDocs: url: https://swagger.io description: Find more info here paths: /v1/pass/{templateId}/{passId}/metadata: patch: tags: - passes - mcp summary: Update pass metadata description: >- Updates only the metadata for a pass without triggering wallet notifications operationId: updatePassMetadata parameters: - schema: type: string in: query name: accountId required: false - schema: type: string in: path name: templateId required: true - schema: type: string in: path name: passId required: true requestBody: content: application/json: schema: type: object properties: metadata: description: >- Metadata is for your internal use. It is not exposed to users through passes. The metadata is limited to 5000 characters when serialized to JSON. type: object additionalProperties: {} responses: '200': description: Default Response content: application/json: schema: type: object properties: pass: description: The current details of a pass instance type: object properties: id: minLength: 1 description: >- Id is a unique identifier of the pass, it could be a voucher code or membership id type: string templateId: description: Template id used by this voucher type: string accountId: description: The account id that created the pass/template type: string code: minLength: 1 description: >- The code that is used as data in the QR Code. This can be different to the id if you wish to have a url or more data in the QR code. type: string expiry: anyOf: - format: date-time description: >- The UTC date at which the pass expires. If this is not provided the voucher will have no expiry. type: string - type: 'null' validFrom: anyOf: - format: date-time description: >- The UTC date at which the pass becomes valid. If this is not provided the pass is valid from when it is created. type: string - type: 'null' voided: default: false description: Set this to true once the pass has been used type: boolean primaryValue: description: Required for 'generic' pass types. type: string metadata: description: >- Metadata is for your internal use. It is not exposed to users through passes. The metadata is limited to 5000 characters when serialized to JSON. type: object additionalProperties: {} locations: maxItems: 10 description: >- Adds to the template's locations for this pass — does not replace them. Combined list is subject to each wallet platform's location limit. type: array items: type: object properties: name: description: >- The name of the location where the event is held. type: string address: description: >- The address of the location where the event is held. type: string latitude: description: The latitude of the location. type: number longitude: description: The longitude of the location. type: number relevantText: description: >- Text shown in the Apple Wallet notification when the device enters this location. Falls back to name, then address, if not set. Not used by Google Wallet, which has no per-location text. type: string required: - address - latitude - longitude example: name: Spark Arena address: >- 42/80 Mahuhu Crescent, Parnell, Auckland 1010, New Zealand latitude: -36.847136000000006 longitued: 174.7769837 fields: maxItems: 4 type: array items: description: >- A field that is displayed in a voucher, that is identified by the key. It can be defined in a template and overwritten in a pass type: object properties: key: description: >- The identifier of the field. This is not presented to the user. type: string label: description: The label to go with the value. type: string value: description: The data to display. type: string required: - key - label - value example: key: voucher label: free drinks value: '1' backFields: description: The values can be text, numbers or urls. type: array items: description: >- A field that is displayed in a voucher, that is identified by the key. It can be defined in a template and overwritten in a pass type: object properties: key: description: >- The identifier of the field. This is not presented to the user. type: string label: description: The label to go with the value. type: string value: description: The data to display. type: string required: - key - label - value example: key: voucher label: free drinks value: '1' required: - id - templateId - accountId - code - expiry - validFrom - voided example: id: WgXcQ templateId: fan-reward accountId: LDvGjp645u6Q6t9pbvog code: ASDF123 expiry: '2025-04-04T19:41:12.733Z' validFrom: '2025-04-04T19:41:12.733Z' voided: false fields: - key: voucher label: free drinks value: '1' backFields: - key: terms label: Terms and Condictions value: https://myshout.co/terms googleUrl: type: string appleUrl: type: string webUrl: type: string required: - pass - googleUrl - appleUrl - webUrl '400': description: Default Response content: application/json: schema: $ref: '#/components/schemas/def-0' '401': description: Default Response content: application/json: schema: $ref: '#/components/schemas/def-0' '404': description: Default Response content: application/json: schema: $ref: '#/components/schemas/def-0' security: - bearerAuth: [] components: schemas: def-0: type: object properties: statusCode: type: number code: type: string error: type: string message: type: string title: HttpError securitySchemes: bearerAuth: type: http scheme: bearer ````