https://www.servicenow.com/community/community-central-forum/poll-an-external-api-on-a-schedule-and-create-an-incident-only/m-p/3601755#M7943 <P>We need ServiceNow to call an external API on a fixed interval and read a tag that holds only 1 (alarm active) or 0 (no alarm). An Incident should be created <STRONG>only on the 0 → 1 transition</STRONG> — not on every poll while the value stays at 1.<BR /><BR />Did we do all that in ServiceNow without needing a middleware for specific conditional check. If yes then what will be the complete workflow and how to design or implement this?</P><P>&nbsp;</P> Thu, 24 Sep 2026 10:01:46 GMT abubakarsal 2026-09-24T10:01:46Z https://www.servicenow.com/community/community-central-forum/poll-an-external-api-on-a-schedule-and-create-an-incident-only/m-p/3601755#M7943 <P>We need ServiceNow to call an external API on a fixed interval and read a tag that holds only 1 (alarm active) or 0 (no alarm). An Incident should be created <STRONG>only on the 0 → 1 transition</STRONG> — not on every poll while the value stays at 1.<BR /><BR />Did we do all that in ServiceNow without needing a middleware for specific conditional check. If yes then what will be the complete workflow and how to design or implement this?</P><P>&nbsp;</P> Thu, 24 Sep 2026 10:01:46 GMT https://www.servicenow.com/community/community-central-forum/poll-an-external-api-on-a-schedule-and-create-an-incident-only/m-p/3601755#M7943 abubakarsal 2026-09-24T10:01:46Z