The value for the On Condition Set Field Value user property consists of three quoted parameters, separated by a comma and a space, as follows:
"Condition", "FieldName", "FieldValue"
Condition specifies the condition to be evaluated. FieldName specifies the name of the field on the business component. FieldValue specifies the value. For example:
"[Primary Held Position Id] is not null and [Primary Held Position Id] <> ""No Match Row Id""", "Employee Flag", "Y"