[INVOICEDEBITS:-100] - invoice sum of all debit items with offset
[INVOICEDEBITSNUM] - As per [INVOICEDEBITS] but the value is displayed with a decimal point and no thousands separator(for calculations).
[INVOICEDEBITSNUM:] - As per [INVOICEDEBITS:] but the value is displayed with a decimal point and no thousands separator(for calculations).
[INVOICEVAT] - invoice sum of all vat value
[INVOICEUPSELL0] - base price without upsell items or other charges added later
[INVOICEUPSELLNUM0] - as per [INVOICEUPSELL1] but the value is displayed with a decimal point and no thousands separator (for calculations).
[INVOICEUPSELL1] - value of upsell item 1 (number can be between 0 to 20)
[INVOICEUPSELLNUM1] - as per [INVOICEUPSELL1] but the value is displayed with a decimal point and no thousands separator(for calculations).
[INVOICEUPSELLQTY1] - quantity of upsell item 1 (number can be between 1 to 20)
[INVOICEEXTRAITEM1] - value of extra invoice item 1 (number can be between 0 to 20)
[INVOICEEXTRAITEMNUM1] - as per [INVOICEEXTRAITEM1] but the value is displayed with a decimal point and no thousands separator(for calculations).
[INVOICEEXTRAITEMQTY1] - quantity of extra invoice item 1 (number can be between 0 to 20)