SC Task variable not triggering Update

[dbaril]

I have a variable listed on the sc_task screen that will not trigger an update Business Rule on the RITM table when it is updated on the task screen.  However, if I update the same variable from the RITM screen the BR is triggered.

For testing purposes, I have a very simple condition set for a business rule on the sc_req_item table.  It only checks for an update to a specific catalog item.  The BR displays the previous and current values of the variable I am updating.

    current.work_notes = 'current value ' + current.variables.cost_center.toString();

    current.work_notes = 'previous value: ' + previous.variables.cost_center.toString();

When I update the variable from the task screen, the entries logged show no value for both current and previous values.  When I update the variable from the RITM screen, the current value correctly shows the new value entered.

[Brad Bowman]

So on your Business Rule that is on the sc_task table, the work_notes are updated but missing the current and previous values?

[dbaril]

The business rule is on the sc_req_item table.  If I update the variable from the task screen, no work notes are added.  If I update the variable from the RITM screen, work notes are added, and the current value is correctly displayed.

If I change the business rule to the sc_task table I don't get any work notes for either scenario.  

[Brad Bowman · Accepted solution]

If you have a variable that can be updated on RITM and SCTASK records, then you need two Business Rules, one on the sc_req_item table, and one on the sc_task table.  These should run before Update, with whatever Filter Conditions you need.  I tested both with your script (different variable name) and am seeing the work note on each record with the current and previous variable values in both cases.