A terminal can at anytime preferrably once at the beginning of the day or whenever its powered up check for any changes in the configuration. Any changes in the configuration must be applied first before making sales.
The configuration of the device may fall in 3 categories
1. The global configuration which is controlled largely by MRA and contains business specific information such as tax rates eg VAT @ 16.5 etc
2. The terminal configuration which controlled details specifically relating to the terminal such as the address lines to be shown on receipt and terminal offline sales threshholds
3. The taxpayer configuration which contains details of the taxpayer owning the terminal. This will contain details such as TIN, trading name, contact details, default tax office
