BR-CO-10 — Sum of invoice line net amounts doesn't add up

What it means

The sum of invoice line net amounts doesn't add up. The invoice's total line net amount (BT-106) must equal the sum of all individual line net amounts (BT-131) — the validator adds up the lines and compares them to the stated total.

How to fix it

Check each line's amount (quantity × price) and confirm that the total (LineExtensionAmount at document level) really is the sum of every line. A common cause is a line being added or changed after the total was calculated, or a rounding mismatch between the lines and the total.

Example

Wrong: lines 50.00 + 30.00, but the total is stated as 90.00. Correct: lines 50.00 + 30.00, total 80.00.