Where can the Point Of Acceptance or Point of Order Origin (POA and POO) be found in AR Transactions

Summary:

In the factor sets, under Geography, there are tax qualifiers of 'Point of acceptance' (POA) and 'Point of origin' (POO). I see tax vendors e.g. Avalara use fields. The Tax implementation guide infers these can also be used with the Oracle Tax Engine. Is this true ?

If these can be used with the tax engine, which locations will the tax engine use to determine POA or POO ?

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