Use the subexpression builder to build complex rule conditions from subexpressions by using AND, OR, NOT and parenthetical grouping. The subexpression builder validates the rule when you apply the changes, and alerts you to mismatched parentheses, and unsupported logic operators.
To view this page for ODRs, click Servers > On demand routers > odr_name > HTTP on demand router properties > Routing policy HTTP rules > Specify by > Expression > Subexpression builder.
To view this page for ODR clusters, click Servers > On demand router clusters > odr_cluster > HTTP on demand router properties > Routing policy HTTP rules > Specify by > Expression > Subexpression builder.