IN-ISSUE-DATE-REQUIRED:Issue date required
Fix: Add IssueDate in YYYY-MM-DD format. Provide the required value in the free validator.
Invoice must have an issue date specified.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Invoice Issue Date
What is IN-ISSUE-DATE-REQUIRED?
IN-ISSUE-DATE-REQUIRED is a fatal validation rule defined in the peppol-bis-3 specification. It validates the IssueDate element under Invoice 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: /Invoice/cbc:IssueDate
Why This Error Matters
Issue date is mandatory.
IN-ISSUE-DATE-REQUIRED is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by PEPPOL Access Points
- ·Error returned: IN-ISSUE-DATE-REQUIRED
- ·Specification: peppol-bis-3
How to Fix It
Add IssueDate
Date invoice was issued
Use format
YYYY-MM-DD
XML Example
Generic example based on the rule's target XPath. Your actual XML structure may differ.
<!-- Missing or empty element triggers cbc:IssueDate error --> <cbc:IssueDate></cbc:IssueDate>
<!-- Provide the required value --> <cbc:IssueDate>VALID_VALUE</cbc:IssueDate>
Technical Reference
XPath: /Invoice/cbc:IssueDateCommon Causes
- ·Missing IssueDate
- ·Wrong format
Seeing this in production? The API handles IN-ISSUE-DATE-REQUIRED automatically. See the fix response →
Frequently Asked Questions
Invoice must have issue date.
Add IssueDate in YYYY-MM-DD format. Invoice Navigator detects this error and prompts for the required business data before applying a safe fix.
Yes, PEPPOL-EN16931-R045 is a critical error that must be fixed.
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Last updated: 3 March 2026
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