# Update a UPI product reference

Endpoint: PATCH /usage-product-references/{product_reference_id}
Version: 2.24
Security: bearerAuth

## Path parameters:

  - `product_reference_id` (integer, required)
    Usage product reference identifier
    Example: 1

## Request fields (application/json-patch+json):

  - `op` (string, required)
    The JSON Patch operation to be performed
    Enum: "add", "remove", "replace", "move", "copy", "test"

  - `path` (string, required)
    A JSON-Pointer

  - `value` (object)
    The value to be used within the operations

  - `from` (string)
    A string containing a JSON Pointer value

## Response 200 fields (application/json):

  - `id` (integer)
    Product reference identifier
    Example: 1

  - `productReference` (string, required)
    Product reference. Extra validations may be applied depending on product configurations.

  - `primary` (boolean)
    True if product reference is primary (main billing number)

  - `label` (string)
    Product reference

  - `startDate` (string, required)
    Start date

  - `endDate` (string)
    End date

  - `userId` (string)
    User Id

  - `userEmail` (string)
    User email address

  - `costCentreCode` (string)
    Cost centre code

  - `departmentCode` (string)
    Department code

  - `notes` (string)
    Notes


## Response 400 fields

## Response 401 fields

## Response 403 fields

## Response 404 fields