The HP 4345 can hang if using cost centers that have more then one level with cost center constraints enabled. If one of the cost centers from the first level doesn’t have cost centers selected in the “Relation to next category” field, when the user selects that cost center on the HP4345 it will hang.

 

To solve this problem please make sure that the “Relation to next category” field is populated, if cost center constraints are used.