extendEntitlementByInterval method extends an Account entitlement by the interval provided.
(The entitlement must already exist and be on the Account when this method is called.)
Input
srd: sparse response description, a SOAP string (which must be a JSON object), in which you specify the elements you want returned.This parameter enables the calling system to constrain amethod call to return only components you specify. This gives you greater control over returned content, and improves response time within the Vindicia platform by reducing the processing needed for the call.
Some fields are required, either practically or in the WSDL, and will be returned regardless of the srd. A null srd returns the complete response.
account: the Account to which this extension applies.
entitlement: an object of type Entitlement for the given Account.
merchantEntitlementId: the merchant’s unique ID for this entitlement. This may be specified in lieu of the full Entitlement object. Note that either the Entitlement or the merchantEntitlementId must be specified.
interval: the extension interval to be applied to entitlement.
note: an optional memo regarding the entitlement extension.
Output
return: an object of typeReturn that indicates the success or failure of the call.
account: the Account object with modified entitlements.

