Using CSI 9.01.01 on prem. I've written an IDO Method (C#) to perform a look up. The parameters are:
string pItem, string pSource, string pCostType, ref int pYesNo
The event is firing, but I'm getting the following error:
No value was returned from IDO Method that has [IDO Name: QVI_SLItems] and [Method Name: CheckItemSourceAndCostType].
Final output parameter has value: 1
Event Name is IdoOnItemUpdate.
Event Handler Sequence is 23.
Event Action Sequence is 30.
This is how I have the call defined inside the Event:

I've tried using both RE and RV. DoesItemMatch has been declared as a Variable in the step just before this one. It should be returning either a 0 or 1. What am I doing wrong?