EndToEndId values should be unique within the file. Duplicates may cause reconciliation issues on the bank side.
Why pain.001 files fail rule PAIN001-QUAL-001 (WARNING) and how to fix it: EndToEndId values should be unique within the file. Duplicates may cause reconciliation issues on the bank side.
What this rule checks
EndToEndId values should be unique within the file. Duplicates may cause reconciliation issues on the bank side.
Applies to pain.001.001.03. Severity: WARNING.
Why your file is rejected
This is raised as a warning: many banks still process the file, but some reject it or flag it for manual review. Fixing it removes ambiguity and avoids downstream rejections.
How to fix it
Review the affected element against the rule constraint and correct the value where it is violated.
Verify before you send
Upload your pain.001 file to the validator below to confirm this rule — and every other business rule and XSD constraint — passes before your bank sees it.