Generic 855 validation guide
How to Validate an EDI 855 Purchase Order Acknowledgment
Review supported framing, release identity, ownership, counts, syntax, and data-quality findings with source locations.
The public validator applies generic X12 and 855 checks. It reports errors or warnings with category, source segment and element location, transaction ordinal, and relevant PO1 or ACK identity where available.
What the validator checks
- X12 framing across interchange, group, and transaction controls.
- Exact 855 identity and supported generic release authority for 004010, 004030, and 005010.
- 855 structure and ownership across BAK, PO1, ACK, SCH, and CTT.
- Companion-field completeness, objective CTT line-count consistency, and supported date, number, code, qualifier/value, and repeat rules.
- Orphan ACK and malformed CTT count mismatch conditions under their adjudicated validation intent.
- Generic data-quality conditions without inventing missing business facts.
Unsupported, missing, and ambiguous release authority
The tool reports the established unsupported-version disposition when release authority is unsupported, absent, or conflicting. It does not silently treat the file as a tested release.
What a clean result does not certify
Generic validation is not trading-partner implementation-guide compliance or certification, retailer certification, GS1 certification, order reconciliation, supplier-performance scoring, purchase-order acceptance, fulfillment confirmation, or financial reconciliation. A partner may require structures and code values outside this product's generic scope.
Run validation and investigate findings
Open the EDI Validator or use validation beside the Converter. Download the validation report as CSV, XLSX, or JSON, then trace its source locations with the 855 reading guide and EDI 855 data map. EDI-content checks run locally in the browser; a clean result does not prove purchase-order acceptance or partner compliance.