Understanding rule sets
The rules engine works at two levels: individual rules and rule sets. A rule set is a container that groups one or more individual rules together.
AND vs. OR between rule sets
| Operator between sets | Effect on the population |
|---|---|
| OR | Union — adds users from this rule set to the population. |
| AND | Intersection — narrows the population to users who also match this set. |
Splitting a rule set
Use the Split group button to create a new empty rule set below the current one.
Manual SQL rules (system administrator only)
The condition must be a valid SQL WHERE clause fragment. For example:
uid IN (SELECT id FROM master_data WHERE ver = '1')The system validates the condition syntax before saving.
