In the data mapping we map the fields between 2 different systems towards our datamodel. As you can see in the below picture we receive from the source a inventory number and translate it towards the product.sku. Please be aware that you can map fields multiple times from the get side of the flow but you should not map the fields multiple times at the send side as we use the last know value to send even if it is empty.
As you might notice there can be the following values within a field name the . and :
These values are based upon the JSON structure we retrieve from the source. In this way we can map on a generic method and make a difference between where the data is available within a json.