If you examine the property page of Periodic Alert, you see that it has a persistence type of Temporary and persistence number of days of 0. This means that the run time data associated with any item instances for this item type are eligible for purging as soon as they complete. A Selector function is not specified because the process to start is specified when you initiate a Periodic Alert process from the web-based interface.
The Periodic Alert item type also has several associated attributes. These attributes record information provided when you initiate a Periodic Alert process. The attributes are used and maintained by function activities as well as notification activities throughout each process. The following table lists the Periodic Alert item type attributes.
|Display Name||Description||Type||Length/Format/Lookup Type|
|Alert Recipient||Role to notify when alert exception is detected||Role|
|Start date||Date to start alert check (default is today)||Date||DD-MON-YYYY HH24:MI:SS|
|End date||Date to end alert check (default is 12/31/2010 12:12:12 PM)||Date||DD-MON-YYYY HH24:MI:SS|
|Frequency||Frequency to check the alert||Lookup||Wait Mode|
|Frequency - day of month||Day of month required when Frequency is Day of Month||Lookup||Day of Month|
|Frequency - day of week||Day of week required when Frequency is Day of Week||Lookup||Day of Week|
|Frequency - time of day||Time optional, but used by Wait activity for any Frequency value||Date||HH24:MI|
|Frequency - days||Number of days required when Frequency is Relative Time||Number|
|Once Only||Perform Alert Once Only||Lookup||Yes/No|