Environment

SM RTE = 9.52.7009
SM Application = 9.52.0011
SM Client = 9.52.7009 P7
SM Web Client = 9.52.0011
Operating system = Windows Server 2012 R12 Standard
Database = MS SQL Server 2012
Java version = Ver. 8 Update 74 (build 1.8.0_74-b02)
OBM version: 2020.10 (11.01) IP1 | Build: 11.01.120.070

Situation

Event forwarding from OBM to SM is enabled in our environment.many events failed when forwarding with the following error "Event Forwarding Gateway server <OBM Server> is unable to reach server <SMIntegration>"

Cause

The OBM event forwarding only distinguishes between failed or success.
If it failed, OBM will try forwarding until it either succeeds or eventually expires (after 12h by default).

Unfortunately, there are cases where SM is available, but rejects an event that's forwarded (e.g. because the event was already closed or violates a business rule).
Later OBM versions have an infrastructure setting that allows to configure if OBM should forward closed events (Forward Closed Events to External Server) to avoid this problem at least for closed events.

Resolution

. keep expiration time short (e.g. 1h instead of 12h).
With a short expiration, such events will expire quickly and not affect other ones.

. bypass the validation on SM by adding the scripts on IncidentDAO Script Library

1.Go to ScriptLibrary: IncidentDAO
2. find function doClose:function( objUpdate, action, appendFields ){
3. find this script block:

if (system.functions.exists("current.phase", this.scFile) && this.scFile["current.phase"]!=null)
// with PD(Incident), do back end WF transition close
rc = this.scFile.doAction("_wfE:event.close");
} else { // without PD(Incident), do close
rc = this.scFile.doAction("close");

Change it to:

if (system.functions.exists("current.phase", this.scFile) && this.scFile["current.phase"]!=null) {
// with PD(Incident), do back end WF transition close
//add below line to bypass validation
vars.$bypass_failed_validation = true;
rc = this.scFile.doAction("_wfE:event.close");
} else { // without PD(Incident), do close
rc = this.scFile.doAction("close");