An Outbound REST Integration call may fails when calling a REST Message from script, but may work fine when testing the related REST Message from System Web Services > Outbound > REST Message.
The system logs will display the below error:
REST Msg Outbound - RESTMessageClient : Error constructing REST Message/Method: incident/post: com.glide.generators.InvalidGlideRecordException: REST message/method 'incident/post' not found in table 'sys_rest_message_fn': com.glide.rest.outbound.RESTMessageDAO.getMethodRecord(RESTMessageDAO.java:97)
com.glide.rest.outbound.RESTMessageDAO.<init>(RESTMessageDAO.java:72)
com.glide.rest.outbound.RESTMessageDAO.newInstance(RESTMessageDAO.java:67)
com.glide.rest.outbound.RESTMessageConfig.initNew(RESTMessageConfig.java:66)
com.glide.rest.outbound.RESTMessageClient.<init>(RESTMessageClient.java:54)
com.glide.rest.outbound.scriptable.ScriptableRESTMessageClient.<init>(ScriptableRESTMessageClient.java:56)
com.glide.rest.outbound.scriptable.ScriptableRESTMessageClient.jsConstructor(ScriptableRESTMessageClient.java:40)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.mozilla.javascript.MemberBox.invoke(MemberBox.java:138)
org.mozilla.javascript.FunctionObject.doInvoke(FunctionObject.java:670)
org.mozilla.javascript.FunctionObject.call(FunctionObject.java:559)
org.mozilla.javascript.FunctionObject.call(FunctionObject.java:491)
org.mozilla.javascript.BaseFunction.construct(BaseFunction.java:403)
org.mozilla.javascript.ScriptRuntime.newObject(ScriptRuntime.java:2449)
org.mozilla.javascript.ScriptRuntime.newObjectEx(ScriptRuntime.java:2464)
org.mozilla.javascript.gen.null_null_script_1392._c_script_0(null.null.script:6)
org.mozilla.javascript.gen.null_null_script_1392.call(null.null.script)
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:563)
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3421)
org.mozilla.javascript.gen.null_null_script_1392.call(null.null.script)
org.mozilla.javascript.gen.null_null_script_1392.exec(null.null.script)
com.glide.script.ScriptEvaluator.execute(ScriptEvaluator.java:263)
com.glide.script.ScriptEvaluator.evaluateString(ScriptEvaluator.java:110)
com.glide.script.ScriptEvaluator.evaluateString(ScriptEvaluator.java:76)
com.glide.script.fencing.GlideScopedEvaluator.evaluateScript(GlideScopedEvaluator.java:343)
com.glide.script.fencing.GlideScopedEvaluator.evaluateScript(GlideScopedEvaluator.java:263)
com.glide.script.fencing.GlideScopedEvaluator.evaluateScript(GlideScopedEvaluator.java:250)
com.glide.processors.ScriptProcessor.evaluateScript(ScriptProcessor.java:330)
com.glide.processors.ScriptProcessor.runScript(ScriptProcessor.java:219)
com.glide.processors.ScriptProcessor.process(ScriptProcessor.java:177)
com.glide.processors.AProcessor.runProcessor(AProcessor.java:474)
com.glide.processors.AProcessor.processTransaction(AProcessor.java:199)
com.glide.processors.ProcessorRegistry.process0(ProcessorRegistry.java:178)
com.glide.processors.ProcessorRegistry.process(ProcessorRegistry.java:167)
com.glide.ui.GlideServletTransaction.process(GlideServletTransaction.java:31)
com.glide.sys.Transaction.run(Transaction.java:2037)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)