ClearData is an advanced feature that should normally be avoided.
The suggested method to delete or clear records is to use the following steps.
Use the Extract feature to extract the records that are the desired clear range.
Double check the extracted records to make sure that only the records desired have been extracted
Change the Value for each record to ZERO and Load again
This method is much safer and avoids messages that can be misleading to someone who does not have a deep understanding of Multi-Dimensional design.