Input variable removal solution When editing workflows, particularly when deleting input variables, be sure to use a single update set for all variable editing and workflow publishing. If necessary, merge the update set into a more general set targeted for deployment after the workflow is published. For information about update sets, see Update Sets. Note: If a workflow version is already running on a production system and input variables are deleted from a newer version, those deletions could affect transactions already running against the earlier version. Use extreme caution when deleting workflow input variables and plan the migration carefully.