process does not step through after sending the receipt ack

We have implemented PIP3A4 and this was actually working till last week. However now when we try to run this we, the PRT process gets triggered coreclty and after validation a receipt ack is sent to the trading partner, however it does not transition to the next which is actually a “else” transition type, which should get invoked if the condition “sendFailed != yes” is fulfilled by the send receipt ack service. Here is the error message and would appreciate any help. We are running 6.0.1 SP2…The modeler client is 6.0.1 SP1


com.wm.lang.flow.MalformedExpressionException: [ISC.0049.9106] Expected an expression. at at at at at at at at at at at at at at at at at at at at at at at wm.prt.dispatch.handleTransition( at sun.reflect.GeneratedMethodAccessor391.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.i

The error code, ‘ISC.0049.9106U “Expected an expression.”’, is documented in the webMethods Integration Platform Error Message Reference 6.0.1 as follows.

Explanation: The expression specified for a flow step or a trigger has a syntax error and does not represent a valid expression.

Recommended Action: Examine the expression specified for the Flow step or the trigger. Refer to Appendix D in the webMethods Developer User’s Guide for the correct syntax usage, and correct the error.

You can find the Error Message Reference guide in the Platform-wide Documentation section of the Bookshelf.

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