Free X12 810 tool
Validate an X12 810 Invoice before it enters production
Paste the actual 810. Shipment Sentry checks the interchange, functional group and transaction envelope, then applies 810-specific required-segment checks with exact locations.
Direct answer
Direct answer
An X12 810 Invoice validator should verify delimiters, ISA/IEA controls, GS/GE controls, ST/SE controls and counts before checking BIG, N1, IT1, TDS, SE. Those segments carry invoice number, invoice date, purchase-order reference, parties, line quantities, prices, allowances, charges and total. Passing structural validation proves internal consistency, not acceptance by a specific trading partner.
Why a parser is not enough
A parser can display a 810 while still missing a control match, transaction count or business segment. The free tool separates deterministic X12 defects from requirements that belong to a partner implementation guide, so a team does not mistake generic syntax for production readiness.
What the control should check
- 01ISA13 matches IEA02 and IEA01 matches the functional-group count.
- 02GS06 matches GE02 and every GS has a corresponding GE.
- 03ST02 matches SE02 and SE01 counts ST through SE inclusively.
- 04The transaction identifies itself as 810, not another X12 set in a misleading filename.
- 05Required 810 segments are present: BIG, N1, IT1, TDS, SE.
- 06Every finding includes a code, location, evidence class and remediation.
Working example
BIG*20260718*INV-1042**PO-77821~IT1*1*12*EA*18.50**BP*SKU-104~TDS*22200~This excerpt shows the transaction-specific core, not a complete interchange. The validator expects a full ISA through IEA document and reports the exact segment position for each defect.
Failure modes worth catching
- A regenerated trailer contains a different control number from its header.
- SE01 excludes ST or SE and is off by one.
- A required business segment is absent even though the interchange parses.
- The file passes a generic schema but violates the receiving partner's current implementation guide.
Put it into the dispatch workflow
- 1Load the 810 without customer secrets or unrelated files.
- 2Fix envelope and count errors first because they can hide later structure.
- 3Fix missing 810 segments and re-run the same document.
- 4Compare identifiers, quantities and dates with the originating business record.
- 5Use the API gate for repeat checks and retain evidence only when your policy requires it.
Questions
Implementation answers
Can this validator guarantee a trading partner accepts my 810?
No. It catches deterministic envelope and supported transaction-set defects. Partner-specific situational rules remain controlling.
Is the uploaded EDI retained?
Anonymous runs store a content hash and findings, not the raw document. Signed-in users can explicitly opt into encrypted retention.
Can I validate automatically?
Yes. The authenticated gate API accepts a unique idempotency key and returns cleared or blocked with structured findings.
Sources and limits
Reviewed 2026-07-18. Public references cannot establish every partner-specific rule. Current implementation guides and agreements remain controlling.
Keep investigating