I can see you passed one value as in_TransactionItem.SpecificContent. Can you check whether you passed proper key value not.
If possible print that value using Message Box activity before Invoke Workflow and check it once.
I can see you passed one value as in_TransactionItem.SpecificContent. Can you check whether you passed proper key value not.
If possible print that value using Message Box activity before Invoke Workflow and check it once.