REP-01324: Output columns in group filter {0} are not allowed.
Cause: In the filter for the specified group, an attempt was made to set the value of an Oracle Reports Builder column or parameter. For example, the value of a column called COUNT1 can be used in a condition (for example, IF :COUNT1=10), but its value cannot be directly set in an assignment statement (for example, COUNT1=10).
Action: Remove the assignment statement from the group filter.
Level: 1
Impact: Other