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The system uses the above parameters as retention period for the various message types. Messages older than the retention period are stored in the Long Term Archive in the cloud and deleted from EIS. The association between the message types and the respective retention period is the following:
| Message Type | Notification Parameter | Retention Period in Days |
|---|---|---|
| MS2SSN_Ship_Not | MRS_PERIOD | 180 |
| MS2SSN_PortPlus_Not | PORTPLUS_PERIOD | 180 |
| MS2SSN_Exemption_Not | EXEMPTION_PERIOD | 7300 |
| MS2SSN_IncidentDetail_Not | ALERT_PERIOD | 2000 |
| All other types | OTHER_PERIOD | 180 |
The retention period for ES2SSN_IncidentDetail_Not is the same as that for MS2SSN_IncidentDetail_Not.
AIS_PERIOD will be removed once the v4 Services are decommissioned.
The PORTPLUS_PERIOD is used also by the Voyage Correlation process which does not take into consideration PortPlus Notifications older than the configured number of days, when these Notifications are associated with a particular Voyage.