# 2412 - Service Change of State

2412 - Service Change of State

<table data-header-hidden><thead><tr><th width="146.33333333333331">Event</th><th width="230">Extension action set</th><th>Description</th></tr></thead><tbody><tr><td>Event</td><td>Extension action set</td><td>Description</td></tr><tr><td><a href="#before">Before </a></td><td>EXT_2412_1_Before</td><td>Will be executed before MSS changes the state of the service;</td></tr><tr><td><a href="#replace">Replace</a></td><td>EXT_2412_2_Replace</td><td>Will replace MSS change state code, can be used also to create validations before MSS changes the state of the service using the output parameter <strong>outRunMSSCode</strong>;</td></tr><tr><td><a href="#after">After</a></td><td>EXT_2412_3_After</td><td>Will be executed after MSS changes the state of the service;</td></tr></tbody></table>

### Before

*Input Parameters*

* inServiceExercise – Exercise of the service (SRVEXR);&#x20;
* inServiceSeries – Serie of the service (SRVSER);&#x20;
* inServiceNumber – Number of the service (SRVNDC);&#x20;
* inPreviousState – Code of the current State (SRVSTS);&#x20;
* inNewState – Code of the new State (SRVSTS);

### Replace

*Input Parameters*

* inServiceExercise – Exercise of the service (SRVEXR);&#x20;
* inServiceSeries – Serie of the service (SRVSER);&#x20;
* inServiceNumber – Number of the service (SRVNDC);&#x20;
* inPreviousState – Code of the current State (SRVSTS);&#x20;
* inNewState – Code of the new State (SRVSTS);

*Output Parameters*

* outRunMSSCode – when replacing MSS module must return 0(zero), if working as validations can return 1 so MSS opens the Service, 0 to ignore MSS code or -1 to abort the operation;

### After

*Input Parameters*

* inServiceExercise – Exercise of the service (SRVEXR);&#x20;
* inServiceSeries – Serie of the service (SRVSER);&#x20;
* inServiceNumber – Number of the service (SRVNDC);&#x20;
* inPreviousState – Code of the previous State (SRVSTS);&#x20;
* inNewState – Code of the current State (SRVSTS);


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