This image shows the Map to ReceiveMessages page. The Map icon is in the upper left corner. Below this is the mapping toolbar (with Designer, Code, Test, Recommend, and other links) and below that is the Sources data structure to the left. On the right is the Target data structure. The Message variable on the left is mapped to Msg on the right. The expression for the mapping is defined as follows: concat ( /nstrgmpr:execute/nstrgmpr:QueryParameters/ns20:message , " - This message was processed successfully" ).