Usage of field invoice_address on purchase unclear

[ced (Cédric Krier)]

@timitos

On purchase there is the field invoice_address. But in most cases the invoice address of an incoming invoice should be an address of the company. So in most cases the field is just used to have a correspondence address for the supplier on the purchase report.

The invoice address on purchase is useful to correctly compute taxes when the rules depend on the countries.
So it is actually the address from which the supplier will send the invoice.

@timitos

Do you have any idea what we could do about this ambiguity?

For me there is no ambiguity but we could have an help text that describe the field.
The effort of How to write tooltips should be completed.