Costco 855 Converter • Updated October 2025

Costco 855 PO Acknowledgment
to CSV Converter

Convert Costco 855 (PO Acknowledgment) EDI files to CSV instantly. Process Costco PO Acknowledgment data for import into your systems, reconciliation, and compliance verification. PlainEDI extracts all 855 segments into Excel-ready CSV format.

Convert Costco 855 Free

No signup required

TL;DR

Convert Costco 855 (PO Acknowledgment) EDI files to CSV instantly. PlainEDI converts Costco 855 files to CSV in seconds—upload your EDI file, preview the first 10 rows free, then export the full CSV for $9 (single file) or $3.90 per file (10-pack). No EDI software required.

Why Convert Costco 855 to CSV?

Import Costco 855 data into your ERP or management system

Verify PO Acknowledgment accuracy before sending to Costco

Reconcile 855 data against other EDI transactions

Track Costco PO Acknowledgment trends and volumes

Audit 855 files for Costco compliance requirements

Costco 855 Tips & Best Practices

Key insights for working with Costco PO Acknowledgment files:

Costco Compliance: Follow Costco's EDI specifications for 855 files

Data Accuracy: Verify all 855 segments match Costco requirements

Timing: Send 855 files according to Costco's expected timelines

Testing: Complete Costco EDI testing before production 855 transmissions

Support: Contact Costco supplier support for 855 questions or issues

Frequently Asked Questions

What 855 data does Costco require?

Costco requires specific 855 (PO Acknowledgment) segments and elements according to their EDI specification. Convert your 855 files to CSV with PlainEDI to verify all required data is present and formatted correctly before sending to Costco.

How do I ensure my Costco 855 files are correct?

Upload your 855 file to PlainEDI for instant validation and CSV preview. Review the extracted data to confirm accuracy, check for missing required fields, and verify compliance with Costco's specifications. Fix any errors before transmitting to Costco.