Leave Data Fields Unchanged
Scenario
In case you need to suppress one or multiple fields during execution, it can be achieved in two ways. You can suppress a particular field in Mapper using the Dynamic Skip options and in case if needs to suppress multiple fields (Do not want to send the values for those fields during execution), you can use the advanced feature Disable mapped fields if mapped value in Excel.
Leaving per data field unchanged
You can perform Suppress field on Zero, Suppress field on Blank or Suppress field on Blank or Zero. For example, let's take Suppress field on Blank or Zero to cover both the cases.
Instead of entire Row if you want to suppress only selected fields, you can use DS type Suppress Field on Blank or Zero or Space(s).
To know more on how to keep particular data field unchanged, see F-Suppress Field on Blank or Zero.