Update customer

Updates an existing customer in the system. The only field that can currently be modified is the customer reference ID (customerRefId), which is an optional external identifier used to link the customer to an external system. If provided, the customerRefId will be updated to the new value. If null is provided, the existing customerRefId will be removed. All other customer fields will remain unchanged.

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Path Params
string
required

The unique identifier of the customer to update. This must be a valid customer ID associated with your entity. Used to look up the specific customer's details

Body Params
string

(Optional) The identifier of the merchant that this customer will be associated with. This merchant must already exist in the system.

string | null

(Optional) The external customer reference ID used to tie this customer to a customer in an external system.

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application/json