Business rule(s) running twice when the 'Execute function' checkbox is checked.Description<!-- div.margin { padding: 10px 40px 40px 30px; } table.tocTable { border: 1px solid; border-color: #e0e0e0; background-color: #fff; } .title { color: #d1232b; font-weight: normal; font-size: 28px; } h1 { color: #d1232b; font-weight: normal; font-size: 21px; margin-bottom: 5px; border-bottom-width: 2px; border-bottom-style: solid; border-bottom-color: #cccccc; } h2 { color: #646464; font-weight: bold; font-size: 18px; } h3 { color: #000000; font-weight: bold; font-size: 16px; } h4 { color: #666666; font-weight: bold; font-size: 15px; } h5 { color: #000000; font-weight: bold; font-size: 13px; } h6 { color: #000000; font-weight: bold; font-size:14px; } ul, ol { margin-left: 0; list-style-position: outside; } --> Overview Business rules can run twice when the 'Execute function' checkbox is checked. Subject When the 'Execute function' (execute_function) checkbox is checked, the business rule script will have an "immediate" function declaration, for example: function onAfter(current, previous) { } or function onBefore(current, previous) { } This function will get added to the script that will be evaluated. However, if there is a script in the BR script field which includes the function as well, it will get added to script that goes through the evaluation twice. The 'Execute function' is a legacy field and ServiceNow does not recommend having it checked on business rules. Additional Information The 'Execute function' is a legacy field and ServiceNow does not recommend having it checked on business rules.