https://community.esri.com/t5/trace-network-questions/validating-network-topology-service/m-p/1708016#M197 <P>I have a trace network that I can edit via custom widgets in the EXB. The edits produce dirty areas which I am trying to validate through the API. But I am getting this error. Any idea what I am hitting here? Can't find any information about this.<BR /><BR /></P><LI-CODE lang="markup">{ "success": false, "error": { "extendedCode": -2147219630, "message": "The index already exists.", "details": [ ] } }</LI-CODE><P>When I open the Trace Network item from the portal in Arcgis Pro, the validation works fine. I attach the debug server logs.</P><P>I am in Arcgis Enterprise 12.0</P><P>Postgresql Enterprise GDB.</P> Sat, 13 Jun 2026 07:58:37 GMT PeriklisPanagiotidis 2026-06-13T07:58:37Z https://community.esri.com/t5/trace-network-questions/validating-network-topology-service/m-p/1708016#M197 <P>I have a trace network that I can edit via custom widgets in the EXB. The edits produce dirty areas which I am trying to validate through the API. But I am getting this error. Any idea what I am hitting here? Can't find any information about this.<BR /><BR /></P><LI-CODE lang="markup">{ "success": false, "error": { "extendedCode": -2147219630, "message": "The index already exists.", "details": [ ] } }</LI-CODE><P>When I open the Trace Network item from the portal in Arcgis Pro, the validation works fine. I attach the debug server logs.</P><P>I am in Arcgis Enterprise 12.0</P><P>Postgresql Enterprise GDB.</P> Sat, 13 Jun 2026 07:58:37 GMT https://community.esri.com/t5/trace-network-questions/validating-network-topology-service/m-p/1708016#M197 PeriklisPanagiotidis 2026-06-13T07:58:37Z