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Controlling the volume of generated work object history instances
 

About Flow rules

Through changes to a system settings rule and a decision tree rule, you can control which flow shapes in the flow rules of your application add to work object history at runtime. PROJ-182 5.4

By default, when a flow execution completes processing for most shapes, Process Commander automatically adds an instance to the work object history.

Optionally, your application can suppress all automatically-generated work object history records, or only a subset of the default history records, based on the values of a system setting rule and a decision tree rule.

The standard system setting rule Pega-ProCom.FilterHistory controls whether this feature applies to a specific system, based on the production level. You can copy this system setting rule into your own RuleSet, to alter the settings. Select WRITES_ALL, WRITES_SOME, or WRITES_NONE, for each production level from 1 to 5.

When based on a production level, the WRITES_SOME setting is in force, the system uses rule resolution to find a decision table rule named FilterHistory, which controls the individual types of flow processing steps written to history. The standard decision table rule Work-.FilterHistory writes history for all types of steps. To determine which work history steps appear for a work type in your application, copy the standard decision table into your application RuleSet with an appropriate Applies To class, and update your copy as desired.

For an example of how modify the default behavior, see the Pega Developer Network article PDNPRKB-25196 How to control history instances written to the audit trail.

NoteExecution of the standard Utility activity Work-.AddHistory, and other activities that call the History-Add method for a work object can add instances to work object history. The system setting rule and the FilterHistory decision tables do not affect such additions.

Definitions audit trail,production level
Related topics Atlas — Standard System Setting rules

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