The Client Account Management System or MYGW Client Management system (MYGW-CM), is designed for merchants and PSPs who need to manage an on-going relationship with their clients. While merchants and PSPs may provide an account/client management system hosted on their own servers; MYGW-CM provides this service, freeing merchants and PSPs from the need to manage sensitive client data (including potentially payment card information). MYGW-CM provides each merchant and processor with a database hosted on the MYGW platform. Client information is stored on the merchant’s MYGW-CM database and is accessed via Interface Calls from the merchant or processor website. MYGW-CM Interface Calls The following interface calls are available to the merchant or processor from their applications to access the MYGW-CM functions: 1.Add Client – used to add a client’s details to the merchant’s specific MYGW-CM database. 2.Get Client Information – used to return a specific client’s details stored in the MYGW-CM database including payment transaction history. 3.Update Client Information – used to update existing client information or add new client information to an existing client entry in the MYGW-CM database. 4.Delete Client – used to remove a client’s details from the MYGW-CM database. 5.List Clients – used to retrieve a list of all the clients in the MYGW-CM database for a specific merchant. Note that all these functions can also be manually performed by the merchant and PSP using the merchant administration system described in the My Gateway Merchant Administration User Interface Guide. Calls are initiated through RESTful APIs to the MYGW-CM system. The URL used to address each of the API calls includes the unique MYGW identifier assigned to the merchant, the merchant ID. The data required for all client related functions is a Client Object, serialised as a JSON string. A MYGW client object holds the details associated with an individual user of the payment system. This user has an association with a given merchant and has been registered as a client of said merchant. | 
