---
description: >-
  MSS 5.1 - Extensibility - Functions Kalipso to MSS - Service -
  EXT_Service_Cancel
---

# EXT\_Service\_Cancel

Function to ask MSS to cancel a service.

_Input parameters:_

* inServiceExercise – Exercise of the service
* inServiceSeries – Series of the service
* inServiceNumber – Number of the service
* inCancelCode – Cancel code selected by the user

Output parameters:

* outResultCode – 0 – OK / -3 – Error or user canceled
