Tax commitment is when a PO is created based on the tax rate and area

1. Tax commitment is when a PO is created based on the tax rate and area, I see that the PST portion of the tax is committed and relieved. eg. PO tax rate and area is C/BC ( that is GST = 5% and PST = 7%) so in F4311 it created a tax commitment of 490 that for eg PO amt = 7000 * 7% = 490. Now if 4600 was paid in Mar and so the actual tax commitment should be 4600*7% = 322 in F4311. it shows 490 for both tax committed and tax relieved. In Oct 2019 the remaining amount was cancelled of 2400. however the tax commitment now should show 322

2. However if the invoice is recd on GST only then the calculation now has only GST and no PST amount is calculated on the finance side.