# Points Expiration
source: https://developer.mastercard.com/points-activity-service/documentation/use-cases/rewards-points-expirations/index.md

This use case is used when a consumer needs to see points that have already expired or are about to expire.

## Pre-requisites {#pre-requisites}

There are no pre-requisites for the customer to use this endpoint.

## Sequence Diagram {#sequence-diagram}

Diagram rewards-points-expirations

##### Following are the execution steps: {#following-are-the-execution-steps}

1. The consumer signs into the issuer's app.
2. The customer authenticates the consumer.
3. The customer sends signed a request to the Points Activity Service for points expiration details.
   * The request for point expiration details requires the following mandatory request parameters:
     * user_id
     * user_id_type
4. Mastercard API Gateway authenticates/authorizes the customer and routes the request to the Points Activity Service in the case of a valid customer.
5. The Points Activity Service validates the request parameters received via the `/expiration-details` endpoint.
6. The Points Activity Service retrieves the points expiration details.
7. The Points Activity Service sends a response with points expiration details (200).
8. The Points Activity Service sends a response with a status code of 4xx/5xx in case of an invalid request.

You will receive an error response for an invalid request or any missing request parameter. In that case, you need to update the input and perform step 3 again.

### Endpoint {#endpoint}


API Reference: `GET /points-expirations-details`

Note: For more information about the error codes, refer to the [Code and Formats](https://developer.mastercard.com/points-activity-service/documentation/code-and-formats/index.md) section.