# 1300 - Start of Day Module

1300 - Start of Day Module

<table data-header-hidden><thead><tr><th width="192.33333333333331">Event</th><th width="240">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_1300_1_Before</td><td>Will be executed before MSS opens the Start of Day module;</td></tr><tr><td><a href="#replace">Replace</a></td><td>EXT_1300_2_Replace</td><td>Will replace MSS Start of Day module;</td></tr><tr><td><a href="#after">After</a></td><td>EXT_1300_3_After</td><td>Will be executed after closing the Start of Day module;</td></tr></tbody></table>

### Before

*Input Parameters*

* inRouteCode – Active route code;
* inSubRouteCode – Active sub-route code;

### Replace

*Input Parameters*

* inRouteCode – Active route code;
* inSubRouteCode – Active sub-route code;

*Output Parameters*

* outOpenMSSModule – Return code: 1 – Open MSS module / 0 – Don’t open MSS module;

### After

*Input Parameters*

* inRouteCode – Active route code;
* inSubRouteCode – Active sub-route code;