Symptoms
Provider created Service Plans in PBA with names containing words and numbers. Being sorted by plan name the plans are listed in Control Panel in the following order:
Hosting Pack 100
Hosting Pack 20
Hosting Pack 200
Hosting Pack 205
Hosting Pack 21
Hosting Pack 3500
Hosting Pack 380
Provider expected that Service Plans are shown in the following order being sorted by plan name:
Hosting Pack 20
Hosting Pack 21
Hosting Pack 100
Hosting Pack 200
Hosting Pack 205
Hosting Pack 380
Hosting Pack 3500
Cause
PBA sorts string elements in lexicographical order (dictionary order, alphabetical order). This algorithm is used to sort any kind of strings in PBA.
The order of plans in PBA Control Panel sorted by plan name like in the example above conforms to lexicographical order.