BR-S-08: For a given standard VAT rate (BT-119), the VAT breakdown's taxable amount…
What it means
For a given standard VAT rate (BT-119), the VAT breakdown's taxable amount (BT-116) does not equal the sum of line net amounts, plus charges, minus allowances, that carry that rate.
How to fix it
Recompute that VAT category's taxable amount from the lines, charges and allowances carrying the standard rate, at the source. Arithmetic mismatch -- reported, never auto-repaired.