Diagnosis
You are processing a meter reading unit from dynamic scheduling. You canonly process dynamic schedules with the transactions Delete andCreate Dynamic Schedule Records (E1DY) and Change/Display DynamicSchedule Records (E2DY).

Procedure
After you have changed the meter reading unit, you must use thetransaction E1DY to generate new schedule records for the modified meterreading unit and the corresponding dynamic period. At the same time, theexisting schedule records are deleted.
You can only use transaction E1DY to delete the schedule records of ameter reading unit if the schedule records (selected via the dynamicperiod) do not have any meter reading orders. Delete any meter readingorders before you start this process.