From the Properties view for the
Find full address service task, select the
Input to Service tab and expand lookup(): String on the right hand side.
To make the mapping, select postalCode on the left hand side, and drag and drop to postalCode on the right. You will see a mapping. The red error marker on the
Find full address service task, and on the lookup(): String on the right hand side of the mapping will now disappear, as well as the error in the Problems view.
Select the
Output from Service tab and expand
lookup(): String. Map RETURNVALUE to address.