Error while using "edit" transaction on Equipment Object - SAP Work manager on Syclo Agentry

Question

Hello Experts,
I am trying to execute an edit transaction on Equipment object. I have currently called the edit transaction using a button on Equipment Details screen as follows.
1) Created a transaction on Equipment object.
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2) Properties have "EquipmentID".
3) Config. under this property:
4) the Update step under this transaction.
5) the action which calls this transaction:
6) Action steps:
7) Action step to call the transaction:
Apart from these settings, I have created the required screen set, required button, navigation, set up fields on the screen referring to the transaction and all other required settings.
Now, while running the application, I am able to navigate and pass the field values from details screen to custom edit screen.
While clicking on apply (green check button), it throws the following error:
What can be missing here? Is it mandatory to create a rule on Key property of the transaction? As of now, no rule exists on the ID as it is an edit transaction.
Any help will be greatly appreciated.

Answer 1

Hi Steve,
Thank you so much for your reply. along with these 3 steps, I also changed the action step to point it to equipment instead of "none" and it stopped throwing the error.
However, I got an exception while executing the BAPI using stephandler.
My source code looks as below.
Steplet:
public boolean execute() throws AgentryException {
    try{
EquipmentEditStephandler handler = new EquipmentEditStephandler((com.syclo.sap.User)_user);
handler.editEquipment();
    return true;
    catch(Throwable exception){
    throwExceptionToClient(exception);
    return false;
StepHandler:
public void editEquipment() throws Exception{
        CustEquipment[] array = null;
        CustEquipment custEquipObj = new CustEquipment();
        EquipmentEditBapi bapi = new EquipmentEditBapi(user, new GregorianCalendar());
        bapi.run(custEquipObj);
        bapi.processResults();
The BAPI code to set parameters:
public void setParameters(SAPObject obj) throws Exception
super.setParameters(obj);
try {
Logger log = new Logger(_user, "FetchBAPI_Java_Class");
//Pass Transaction Vales to BAPI_WRAPPER
JCO.Structure jcoStructure = _imports.getStructure("IS_EQUI_ADDR");
String City = user.getString("transaction.City");
setValue(jcoStructure, log, "CITY", City);
String Country = user.getString("transaction.Country");
setValue(jcoStructure, log, "COUNTRY", Country);
String Name2 = user.getString("transaction.Name2");
setValue(jcoStructure, log, "NAME2", Name2);
String EquipmentID = user.getString("transaction.EquipmentID");
setValue(jcoStructure, log, "EQUIPMENTID", EquipmentID);
catch (Exception e) {
user.rethrowException(e, true);
while executing, the data structure that reaches ECC, is blank.
on the Java front, this exception is thrown: