IN-PRICE-POSITIVE:Item price should be positive
Fix: Use positive price; for credits use negative quantity.
Item price (PriceAmount) should typically be a positive value.
Engine Classification
Financial or legal field · Modification blocked by policy
Reason: Item prices should be positive values. Negative prices indicate a data entry error or incorrect handling of discounts/credits. Fix the pricing in your source system - use allowances for discounts, not negative prices.
What is IN-PRICE-POSITIVE?
IN-PRICE-POSITIVE is a warning validation rule defined in the peppol-bis-3 specification. It validates the PriceAmount element under InvoiceLine > Price in the UBL invoice XML.
The invoice may pass transmission, but this non-compliance can cause problems during tax audits or buyer-side processing.
Target path: XPath: /Invoice/cac:InvoiceLine/cac:Price/cbc:PriceAmount
Why This Error Matters
Prices should be positive values.
IN-PRICE-POSITIVE is a soft failure that can cause issues at the receiving end — tax audits, ERP processing, or VAT reconciliation mismatches.
Validator Behavior
- ·Generates validation warning
- ·Rejected by PEPPOL Access Points
- ·Error returned: IN-PRICE-POSITIVE
- ·Specification: peppol-bis-3
How to Fix It
Check prices
Each line PriceAmount
Use positive
Negative quantity for credits
XML Example
Generic example based on the rule's target XPath. Your actual XML structure may differ.
<!-- Incorrect value --> <cbc:PriceAmount>INVALID</cbc:PriceAmount>
<!-- Corrected value --> <cbc:PriceAmount>VALID_VALUE</cbc:PriceAmount>
Technical Reference
XPath: /Invoice/cac:InvoiceLine/cac:Price/cbc:PriceAmountCommon Causes
- ·Negative price
Seeing this in production? The API handles IN-PRICE-POSITIVE automatically. See the fix response →
Frequently Asked Questions
PriceAmount should be positive.
Use positive price; for credits use negative quantity. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.
Yes, PEPPOL-EN16931-R054 is a critical error that must be fixed.
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Last updated: 3 March 2026
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