Diagnosis
You enter a location or HU transfer posting. This movement causes acycle for the location or HU.
Example:
HU1 ,,L1
|,,,,,, |
HU2,,,,,,HU2
|
S1
You enter a transfer posting from HU1 to HU2. As a result, HU2 will beincluded in HU1, and HU1 will be included in HU2.

System Response
A constellation like this is not useful in a business sense; the systemprevents the posting.