I’m in Erp.BO.SalesOrder.MasterUpdate, Pre-Processing
I open a BPM form with a message and two buttons with values 1111 and 1112
When triggered, the form is shown correctly, and I press a button. I immediately call a “Show Message” node and display <callContextBpmData.ButtonValue/> but I get this:
I tried to do the same BPM in Update, but the form does not show.
Go check your server’s event log.
Not super helpful for me.
Ice.Common.EpicorServerException: Exception has been thrown by the target of an invocation.
—> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
—> Ice.Common.EpicorServerException: BPM runtime caught an unexpected exception of ‘NullReferenceException’ type.
See more info in the Inner Exception section of Exception Details.
—> System.NullReferenceException: Object reference not set to an instance of an object.
at Epicor.Customization.Bpm.BO.MasterUpdatePostProcessingDirective_CreateMiscCharge_9523C503A8324D1095E934E87DFFA170.A001_CustomCodeAction()
at Epicor.Customization.Bpm.BO.MasterUpdatePostProcessingDirective_CreateMiscCharge_9523C503A8324D1095E934E87DFFA170.ExecuteCore(Int32 step)
at Epicor.Customization.Bpm.DirectiveBase2.Execute() in C:\_releases\ICE\ICE4.2.200.14\Source\Server\Internal\Lib\Epicor.Customization.Bpm\DirectiveBase.Generic.cs:line 330 at Epicor.Customization.Bpm.DirectiveBase2.Execute(TParam parameters) in C:_releases\ICE\ICE4.2.200.14\Source\Server\Internal\Lib\Epicor.Customization.Bpm\DirectiveBase.Generic.cs:line 222
— End of inner exception stack trace —
at Epicor.Customization.Bpm.DirectiveBase2.Execute(TParam parameters) in C:\_releases\ICE\ICE4.2.200.14\Source\Server\Internal\Lib\Epicor.Customization.Bpm\DirectiveBase.Generic.cs:line 222 at Epicor.Customization.Bpm.MethodCustomizationBase22.<>c__DisplayClass11_0.b__5(MethodDirectiveBase2 dir) in C:\_releases\ICE\ICE4.2.200.14\Source\Server\Internal\Lib\Epicor.Customization.Bpm\MethodCustomizationBase2.cs:line 188 at System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable1 source, Func2 predicate, Boolean& found) at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable1 source, Func2 predicate) at Epicor.Customization.Bpm.MethodCustomizationBase22.RunDirectives(TParam parameters) in C:_releases\ICE\ICE4.2.200.14\Source\Server\Internal\Lib\Epicor.Customization.Bpm\MethodCustomizationBase2.cs:line 0
at Epicor.Customization.Bpm.CustomizationBase22.Execute(TParam parameters) in C:\_releases\ICE\ICE4.2.200.14\Source\Server\Internal\Lib\Epicor.Customization.Bpm\CustomizationBase2.cs:line 98 at Epicor.Customization.Bpm.BO.SalesOrderSvcCustomization.MasterUpdate(Boolean lCheckForOrderChangedMsg, Boolean lcheckForResponse, String cTableName, Int32 iCustNum, Int32 iOrderNum, Boolean lweLicensed, Boolean& lContinue, String& cResponseMsg, String& cCreditShipAction, String& cDisplayMsg, String& cCompliantMsg, String& cResponseMsgOrdRel, String& cAgingMessage, SalesOrderTableset& ds) at Erp.Services.BO.SalesOrderSvcFacade.MasterUpdate(Boolean lCheckForOrderChangedMsg, Boolean lcheckForResponse, String cTableName, Int32 iCustNum, Int32 iOrderNum, Boolean lweLicensed, Boolean& lContinue, String& cResponseMsg, String& cCreditShipAction, String& cDisplayMsg, String& cCompliantMsg, String& cResponseMsgOrdRel, String& cAgingMessage, SalesOrderTableset& ds) in C:\_releases\ERP\ERP11.2.200.14\Source\Server\Services\BO\SalesOrder\SalesOrderSvcFacade.cs:line 6783 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Span1& arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture)
at Ice.Hosting.RestApi.OperationInvokeHelper.<>c__DisplayClass23_0.b__0(Object obj) in C:_releases\ICE\ICE4.2.200.14\Source\Server\Framework\Epicor.Ice\Hosting\RestApi\OperationInvokeHelper.cs:line 401
at Epicor.Hosting.OperationBoundInvoker.InnerInvoke(Object instance, Func2 func) in C:\_releases\ICE\ICE4.2.200.14\Source\Server\Framework\Epicor.System\Hosting\OperationBoundInvoker.cs:line 77 at Epicor.Hosting.OperationBoundInvoker.Invoke(Object instance, Func2 func) in C:_releases\ICE\ICE4.2.200.14\Source\Server\Framework\Epicor.System\Hosting\OperationBoundInvoker.cs:line 47
— End of inner exception stack trace —
Looks like the value of the button is null. 
Can you show me a screenshot of your show message widget details?
Here it is:
But small twist in the story. I added a Raise Exception node after the message node and I get the message with the code from the button. So perhaps the error is happening after the message node and just superseding the display of the button code message.
PostProcessingDirective_CreateMiscCharge
This is where the error is coming from.
Sometimes it gets lost in the chaos.
Hmm, that’s really odd since that is a different event than the one I’m working on.
If I don’t use the BPM data form, it works just fine.
Does that BPM do anything with the call context values?
Disable it and see if the one you’re working on works to confirm.
