CII-SR-04:SupplyChainTradeTransaction required
Fix: Add SupplyChainTradeTransaction with parties and items.
CII must have main trade transaction element.
Engine Classification
Financial or legal field · Modification blocked by policy
Reason: CII documents require the SupplyChainTradeTransaction element as the main transaction container. This fundamental CII structure must be implemented in your document generator.
What is CII-SR-04?
CII-SR-04 is a fatal validation rule defined in the cii-d16b specification. It validates the rsm:SupplyChainTradeTransaction element under rsm:CrossIndustryInvoice in the UBL invoice XML.
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Target path: XPath: /rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction
Why This Error Matters
Main CII content container.
CII-SR-04 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Fails CII schema validation
- ·Error returned: CII-SR-04
- ·Specification: cii-d16b
How to Fix It
Add transaction
SupplyChainTradeTransaction container
Include children
ApplicableHeaderTradeAgreement, etc.
XML Example
Generic example based on the rule's target XPath. Your actual XML structure may differ.
<!-- Triggers validation error --> <rsm:SupplyChainTradeTransaction></rsm:SupplyChainTradeTransaction>
<!-- Corrected --> <rsm:SupplyChainTradeTransaction>VALID_VALUE</rsm:SupplyChainTradeTransaction>
Technical Reference
XPath: /rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransactionCommon Causes
- ·Missing trade transaction
- ·Wrong structure
Seeing this in production? The API handles CII-SR-04 automatically. See the fix response →
Frequently Asked Questions
CII must have main trade transaction element.
Add SupplyChainTradeTransaction with parties and items. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.
Yes, CII-SR-04 is a critical error that will cause invoice rejection. It must be fixed before submission.
Related Errors
Related Content
Last updated: 3 March 2026
Validate your invoice
Drop your XML here to check for CII-SR-04
Detect CII-SR-04 before submission
This error involves a financial field that can't be auto-modified. We'll flag it with a clear diagnosis so you can fix it at the source.