> ## Documentation Index > Fetch the complete documentation index at: https://docs.ulm.m1amdocs.com/llms.txt > Use this file to discover all available pages before exploring further. # Updates a custom data array item > Updates an item from a user custom data array. ## OpenAPI ````yaml /portal/Amdocs_Media-CustomData-2021.03.Released-resolved.yaml patch /v1/user/{userId}/{propertyArrayName} openapi: 3.0.1 info: version: 2021.03.Released title: Connect Custom Data APIs description: > APIs to store and retrieve data. Custom Data will not be accessed or manipulated by ULM business processes and platform service APIs. Note that if a client application must access both platform and custom user data, it will have to issue two requests. The following tracing headers can be used: X-B3-TraceId: The TraceId indicates the overall ID of the trace. Every span in a trace shares this ID. The X-B3-TraceId header is encoded as 32 or 16 lower-hex characters. For example, a 128-bit TraceId header might look like 463ac35c9f6413ad48485a3953bb6124. X-B3-SpanId: The SpanId is 64-bit in length and indicates the position of the current operation in the trace tree. The value should not be interpreted; it may or may not be derived from the value of the TraceId. The X-B3-SpanId header is encoded as 16 lower-hex characters. For example, a SpanId header might look like a2fb4a1d1a96d312. Unless propagating only the Sampling State, the X-B3-SpanId header is required. X-B3-ParentSpanId: The ParentSpanId is 64-bit in length and indicates the position of the parent operation in the trace tree. When the span is the root of the trace tree, there is no ParentSpanId. The X-B3-ParentSpanId header may be present on a child span and must be absent on the root span. It is encoded as 16 lower-hex characters. For example, a ParentSpanId header might look like 0020000000000001. servers: - url: https://ulm-stg.m1amdocs.io/customData - url: https://default-ulm-qa.corp.amdocs.com/customData security: - cookieAuth: [] - OIDC: [] paths: /v1/user/{userId}/{propertyArrayName}: patch: tags: - Custom Data summary: Updates a custom data array item description: Updates an item from a user custom data array. operationId: patchCustomDataListItem parameters: - $ref: '#/components/parameters/filterNoGrouping' - name: userId in: path description: The id of the user or "me". required: true schema: type: string - name: propertyArrayName in: path description: The name of the custom data array. required: true schema: type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/CustomDataArrayItem' responses: '204': description: NO CONTENT '400': $ref: '#/components/responses/error400' '401': $ref: '#/components/responses/error401' '404': $ref: '#/components/responses/error404' '500': $ref: '#/components/responses/error500' components: parameters: filterNoGrouping: in: query name: filter schema: type: string description: > The filtering conditions: property names or property paths using filtering operators and values. The supported operators are: | Operator | Description | | ------- | --------| | eq | Equal | | ne | Not equal | gt | Greater than | ge | Greater than or equal | lt | Less than | le | Less than or equal | sw | Start with | ew | End with | co | Contains | and | Logical and | or | Logical or | not | Logical negation Precedence order for logical operators: not, and, or. schemas: CustomDataArrayItem: type: object additionalProperties: type: object description: An item in a custom data array. 400Error: type: object required: - code properties: code: type: string enum: - invalid-request message: type: string validationErrors: type: array items: $ref: '#/components/schemas/400ValError' 401Error: type: object required: - code properties: code: type: string enum: - authentication-required - invalid-api-key - api-key-not-found message: type: string 404Error: type: object required: - code properties: code: type: string enum: - not-found message: type: string 500Error: type: object required: - code properties: code: type: string enum: - server-error message: type: string 400ValError: type: object required: - code properties: code: type: string message: type: string responses: error400: description: Invalid Request content: application/json: schema: $ref: '#/components/schemas/400Error' error401: description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/401Error' error404: description: Not Found content: application/json: schema: $ref: '#/components/schemas/404Error' error500: description: Server Error content: application/json: schema: $ref: '#/components/schemas/500Error' securitySchemes: cookieAuth: type: apiKey in: cookie name: JSESSIONID OIDC: type: oauth2 description: OAuth 2.0 Authentication flows: authorizationCode: authorizationUrl: /oidc/authorize tokenUrl: /oidc/token scopes: openid: >- Enables OIDC by requesting the ID Token. Without this scope, the request is merely OAuth 2.0 profile: Requests the claims name, family_name, given_name, and picture email: Requests the claims email and email_verified phone: Requests the claims phone_number and phone_number_verified offline_access: Requests that a refresh token be issued. entitlements: Enables the "entitlements" claim. com.uxpsystems.ulm: Full access to all REST APIs. com.uxpsystems.ulm.partner: >- Enables use of the access token to call /privacy/users/*/partners/* APIs for managing end-user privacy settings for this relying party. clientCredentials: tokenUrl: /oidc/token scopes: openid: >- Enables OIDC by requesting the ID Token. Without this scope, the request is not OIDC but merely OAuth 2.0 profile: Requests the claims name, family_name, given_name, and picture email: Requests the claims email and email_verified phone: Requests the claims phone_number and phone_number_verified entitlements: Enables the "entitlements" claim. com.uxpsystems.ulm: Full access to all REST APIs. com.uxpsystems.ulm.partner: >- Enables use of the access token to call /privacy/users/*/partners/* APIs for managing end-user privacy settings for this relying party. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.