Field help (BPCSHVAT) 

To indicate whether this supplier is registered for the special cash VAT regime.

You can also indicate until which date the supplier is subject to this regime. (If the date is not stated as unlimited)

If the supplier is an inter-site one, the values of these fields will be initialized with the values of parameters SPACSHVAT and SPACSHDAT. Changes in the parameters of the company will be applied to the fields in the supplier file. Also, when a new inter-site supplier is created these fields will be fed with the values ​​of the general parameters.