Client Tracking Number

The Client Tracking Number, labeled X-Request-ID, is an optional element to pass in the request header of API calls. The supported data type is a string. If a Client Tracking Number is passed, it will be stored with all other related transaction data from the API call and will be returned in the response header. The Client Tracking Number can be used for point-in-time troubleshooting, similar to the correlation ID.

The field can have a maximum length of 50 and cannot contain special characters. If the value passed is over 50 characters or includes special characters, an error will be returned.