When you update a mapping that is used in a

mapping

task and the mapping is valid, the changes are deployed to the

mapping

task. If the mapping is invalid, the changes are not deployed to the mapping task and the task uses the valid version of the mapping.

If you change the mapping so that the

mapping

task is incompatible with the mapping, an error occurs when you run the

mapping

task. For example, you add a parameter to a mapping after the

mapping

task was created and you do not update the

mapping

task to specify a value for the parameter. When you run the

mapping

task, an error occurs.

If you do not want your updates to affect the

mapping

task, you can make a copy of the mapping, give the new mapping a different name, and then apply your updates to the new mapping.