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General validation errors
Invalid GLN number in EDI
Understand invalid GLN errors in EDI trading-partner documents: where GLNs appear, why partner validators reject them, and how to correct location identifiers.
Invalid GLN number — page-specific context
- Invalid GLN errors often indicate master-data drift between a retailer portal and an ERP/WMS location table.
- N1 qualifier and identifier value must be validated together; correcting only the number may not fix the partner rejection.
- SignalEDI separates location crosswalk visibility from raw X12 so operators can fix business identifiers without reading the full file.
Meaning
What this error means
A Global Location Number used for a ship-to, bill-to, supplier, or facility identifier is missing, malformed, or not enrolled for the trading-partner relationship.
Static validator references: RULEPACK_ELEMENT_VALUE, RULEPACK_ELEMENT_PATTERN. These are public rule identifiers, not customer transaction data.
Where this error appears
Common causes
- The location master stores a DUNS or internal account number where the partner expects a GLN.
- The N1 qualifier identifies the value as a GLN but the value is not enrolled for that partner lane.
- A distribution-center GLN changed but the mapping table still sends the old identifier.
Step-by-step fix
- Confirm the identifier qualifier the partner expects for the rejected party loop.
- Compare the outbound N1/REF value to the partner portal or onboarding packet.
- Update the ERP/WMS location cross-reference for that ship-to, bill-to, or vendor entity.
- Retest the document and verify the corrected location identifier appears in the right loop.
How to prevent it next time
- Maintain partner-specific location crosswalks rather than a single global identifier field.
- Review GLN and facility changes during partner-profile updates.
- Validate identifier qualifier plus value together before sending high-volume retail documents.
SignalEDI prevention
How SignalEDI handles this pattern
- Keeps location identifiers visible as mapped business fields before raw X12 is sent.
- Flags qualifier/value mismatches that look syntactically valid but fail partner meaning.
- Helps teams isolate whether the fix belongs in master data or the EDI map.
Related fix paths
FAQ
Invalid GLN number FAQ
Answers use generalized validation guidance. Confirm partner-specific requirements in the current implementation guide.
GLNs commonly appear in party or location loops such as N1 and related reference segments, depending on the partner's implementation guide.
Yes. A value can have the right shape but still fail if it is not the identifier enrolled for that specific partner lane or facility.
The fix is usually a master-data or cross-reference correction: send the exact location identifier and qualifier the partner has enrolled.
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