EDI Insights & Facts
EDI stands for Electronic Data Interchange, a system that allows businesses to exchange documents electronically in a standardized format. This blog is about the understanding of EDI standards, structure, messages, mapping, and communications.
Wednesday, 25 February 2026
Different Types of Orders (Business + EDI Perspective)
Monday, 16 February 2026
EDI Retail vs Automotive Orders
Retail Orders:
The Purpose is selling finished goods to stores or online customers
- Retailer creates a Purchase Order (PO)
- Supplier confirms and prepares goods
- Supplier ships goods and sends ASN
- Retailer receives goods
- Supplier sends Invoice
Example:
A Company orders 500 water bottles → ships once → invoice sent
Retail EDI Standards
ANSI X12 (850, 856, 810)
EDIFACT (ORDERS, DESADV, INVOIC)
TRADACOMS
- OEM sends Forecast (weekly/monthly demand)
- OEM sends Delivery Schedule (daily/hourly quantities)
- Supplier ships exact quantity at exact time
- Any delay = production line risk
Example:
Car plant needs 200 brake pads every 2 hours → supplier must deliver exactly on time
Automotive EDI Standards
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EDIFACT subsets from:
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ODETTE
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VDA
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RosettaNet (electronics/auto suppliers)
Monday, 9 February 2026
EDI is not just file movement
EDI itself is old and stable — but how companies use EDI is changing fast.
The “what’s new” is mostly around automation, visibility, and expectations.
1. EDI Is Moving from File Exchange to Process Automation
Old thinking:
“EDI = sending and receiving files”
New thinking:
“EDI = automated order-to-cash process”
What’s new:
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EDI tightly integrated with ERP, WMS, TMS
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Business rules embedded into EDI flows
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Touchless processing becoming the goal
2. Real-Time Expectations Are Rising
EDI was traditionally batch-based.
Now retailers expect:
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ASNs within minutes of shipment
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Near real-time invoices
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Immediate error notifications
What’s new:
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Event-driven EDI (triggered by shipment, pick, pack)
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Faster SLAs
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Less tolerance for delays
3. Chargeback Prevention Is a Bigger Focus Than Ever
Earlier:
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Companies accepted chargebacks as “cost of doing business”
Now:
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Chargebacks are tracked, analyzed, and challenged
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Automation is designed to prevent violations upfront
What’s new:
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Pre-send validation rules
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Retailer-specific compliance checks
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Chargeback dashboards
4. EDI Visibility & Monitoring Are Finally Getting Attention
Old reality:
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“No news means EDI is working”
New reality:
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Companies want full visibility:
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What failed?
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Why?
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Who owns it?
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What’s new:
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Proactive alerts
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Exception queues
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KPI-driven EDI monitoring
5. Business Teams Are Getting Involved in EDI
EDI is no longer just IT’s problem.
What’s new:
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Finance tracks invoice deductions
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Operations track ASN accuracy
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Supply chain teams care about routing compliance
EDI is becoming cross-functional.
6. Hybrid EDI Models Are Growing
Companies now run:
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Traditional EDI (X12 / EDIFACT)
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APIs with modern partners
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Portals for small vendors
What’s new:
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EDI + API coexistence
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Same business rules applied across formats
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Unified visibility across channels
7. Self-Service & Configuration Over Custom Code
Earlier:
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Heavy custom mappings
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Dependency on vendors or consultants
Now:
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Configuration-driven rules
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Partner onboarding templates
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Faster changes with less risk
8. EDI Talent Expectations Are Changing
What’s new for professionals:
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Less “just mapping”
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More business + process knowledge
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Understanding chargebacks, SLAs, KPIs
Modern EDI professionals are becoming integration consultants, not translators.
What Has NOT Changed:
EDI formats are still the same
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Retailer rules are still strict
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Poor data still breaks everything
Summary
Companies now see EDI as:
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Revenue protection
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Compliance enforcement
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Operational backbone
Wednesday, 4 February 2026
EDI Chargeback Transactions
What Is an EDI Chargeback Transaction?
An EDI chargeback transaction is not a standard EDI document like a PO or Invoice.
It is a financial penalty imposed by a retailer on a supplier when EDI or logistics rules are violated.
Retailers usually deduct this amount directly from the supplier’s payment and communicate it through EDI documents or retailer portals.
Why Do EDI Chargebacks Happen?
Chargebacks happen when a supplier fails to meet retailer EDI compliance requirements, such as:
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Late or missing ASN
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Incorrect ASN quantity or carton data
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Invalid item numbers (SKU, GTIN, FNSKU)
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Late or incorrect invoice
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Incorrect ship-to / GLN / store number
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Labeling or packaging mismatch
There is no universal EDI “Chargeback” document, but retailers communicate chargebacks using different EDI transactions.
Common EDI Documents Used for Chargebacks
1. EDI 810 – Invoice Deduction
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Retailer deducts chargeback amount from invoice payment
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Seen as a short-paid invoice
2. EDI 812 – Credit/Debit Adjustment
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Explicit document showing:
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Chargeback reason
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Deducted amount
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Example reasons:
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Late ASN
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Routing non-compliance
3. EDI 864 – Text Message
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Used to explain the chargeback in detail
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Often includes free-text reason codes
4. EDI 824 – Application Advice
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Sent when an EDI document is rejected
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Not a chargeback itself, but often leads to one
5. EDI 997 / 999 – Functional Acknowledgment
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Confirms whether a document was accepted or rejected
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Rejection and no fix = chargeback later
Chargeback Flow (Example)
- Supplier sends ASN (856)
- Retailer detects ASN quantity mismatch
- Shipment accepted, but violation logged
- Retailer issues chargeback
- Deduction appears in 810 payment or 812 debit memo
Monday, 26 January 2026
EDI Mistakes That Cost Companies Money
EDI is meant to save time and money, but when implemented or managed poorly, it can silently drain revenue through penalties, rework, and lost business. Many companies don’t even realize how much money they lose due to avoidable EDI mistakes.
Here are the most common EDI mistakes that directly impact costs,
1. Missing or Late ASNs (EDI 856)
The Mistake:
Advance Ship Notices are not sent, sent late, or sent with incorrect data.
Why It Costs Money:
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Retailers impose chargebacks
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Shipments are delayed at warehouses
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Goods may be rejected at receiving docks
Real Impact:
A single missed ASN can result in penalties per shipment, quickly adding up to lakhs or thousands of dollars.
2. Incorrect Invoice Data (EDI 810)
The Mistake:
Mismatch in price, quantity, tax, or freight charges.
Why It Costs Money:
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Invoices get rejected
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Payments are delayed
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Manual corrections increase effort
Real Impact:
Delayed cash flow and increased accounts receivable workload.
3. Duplicate EDI Transactions
The Mistake:
Same EDI file is sent multiple times due to retries or reprocessing.
Why It Costs Money:
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Duplicate shipments or invoices
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Confusion at the trading partner’s end
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Time wasted investigating issues
Real Impact:
Overbilling, disputes, and loss of partner trust.
4. Ignoring Functional Acknowledgments (997 / CONTRL)
The Mistake:
997 rejections are not monitored or acted upon.
Why It Costs Money:
-
Orders or invoices never reach the partner’s ERP
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Business assumes processing is successful
Real Impact:
Missed orders, delayed payments, and emergency firefighting later.
5. Poor Trading Partner Onboarding
The Mistake:
Skipping proper testing and rushing go live.
Why It Costs Money:
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High rejection rates
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Frequent production failures
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Continuous rework
Real Impact:
Support teams spend more time fixing issues than adding value.
6. No Partner-Specific Validation Rules
The Mistake:
Using one generic EDI format for all partners.
Why It Costs Money:
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Retailers enforce strict compliance
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Non-compliant files trigger penalties
Real Impact:
Recurring chargebacks despite “technically correct” EDI files.
7. Expired AS2 Certificates or Connectivity Failures
The Mistake:
Certificates expire or SFTP credentials change unnoticed.
Why It Costs Money:
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Files stop flowing
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Orders pile up
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Emergency fixes required
Real Impact:
Missed SLAs, delayed shipments, and unhappy customers.
8. Lack of Monitoring & Alerts
The Mistake:
No real-time monitoring or alerts for failures.
Why It Costs Money:
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Issues detected too late
-
Business impact already occurred
Real Impact:
What could have been a 10-minute fix becomes a full-day outage.
9. Weak Master Data Management (MDM)
The Mistake:
Incorrect SKU, GLN, UOM, or customer codes.
Why It Costs Money:
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Orders fail in ERP
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ASNs or invoices rejected
Real Impact:
Manual corrections and operational delays.
10. Treating EDI as “Set and Forget”
The Mistake:
Assuming EDI will run forever without maintenance.
Why It Costs Money:
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Partner changes go unnoticed
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New compliance rules missed
Real Impact:
Sudden failures during peak business periods.
How to Prevent These Costly EDI Mistakes
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Monitor EDI transactions daily
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Validate files before sending
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Track acknowledgments and MDNs
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Keep partner specs updated
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Schedule periodic EDI audits
Summary
EDI mistakes don’t always show up as system errors—they often show up as lost money, penalties, and damaged relationships.
Companies that treat EDI as a business-critical system, not just IT plumbing, protect revenue and build stronger partnerships.
Monday, 19 January 2026
How to Onboard a Trading Partner in 7 Steps
Trading partner onboarding is a critical part of EDI integration.
It ensures your business can exchange documents like purchase orders, invoices, and shipping notices smoothly and reliably.
A well-planned onboarding process reduces errors, delays, and partner frustration.
Here are the steps to onboard a new trading partner.
Step 1: Collect Partner Requirements
Before you start, gather all trading partner specifications:
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Supported EDI standards (X12, EDIFACT, TRADACOMS)
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Communication method (AS2, SFTP, VAN, API)
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Document types and versions (850, 855, 856, 810)
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Business rules (mandatory fields, code lists, file naming conventions)
Note: Ask for a partner Implementation Guide (IG)—it contains all details needed for setup.
Step 2: Set Up Communication Channels
Configure the secure method to send and receive EDI files:
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AS2: Secure, real-time protocol with MDN
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SFTP/FTPS: Batch transfer method
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VAN: Value Added Network for managed routing
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API: Real-time JSON/XML exchange (if supported)
Note: Test connectivity before moving to production.
Step 3: Map Your ERP Data to EDI Documents
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Identify which ERP fields map to which EDI segments
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Apply partner-specific rules for:
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SKU/Item codes
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UOM (Units of Measure)
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tax codes
Freight charges
-
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Use an EDI mapping tool like Cleo Studio, OpenText/GXS Application Integrator, IBM Sterling Map Editor etc.
Note: Maintain a mapping specification document for future reference.
Step 4: Validate and Test EDI Files
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Generate sample EDI files from ERP or test system
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Validate against:
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Partner format rules
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Mandatory segments
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Control numbers and hierarchies
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Send test files to the partner and get feedback
Note: Include both positive and negative test cases (valid and invalid scenarios).
Step 5: Coordinate Testing with Trading Partner
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Partner performs system-to-system testing
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Verify:
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Receipt of documents (997 for X12)
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Data correctness (PO acceptance, ASN details, Invoices)
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Communication reliability (timeouts, retries)
-
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Resolve errors collaboratively
Note: Document all changes for audit purposes.
Step 6: Production Cutover
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Schedule go-live with both internal and partner teams
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Send first production EDI files under monitoring
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Monitor:
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Acknowledgments
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File delivery and parsing
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ERP posting success
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Validate all the documents which is generated first
Note: Have a rollback plan if something fails.
Step 7: Post-Go-Live Support & Continuous Monitoring
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Monitor EDI dashboards daily
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Resolve rejections, duplicates, or control errors quickly
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Update mappings if the partner changes requirements
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Keep communication lines open for smooth collaboration
Note: Periodic audits ensure compliance and reduce chargebacks.
Summary
Trading partner onboarding is more than just sending files—it’s about building a reliable, automated, and compliant business connection. Following these 7 steps ensures your EDI integration is smooth, reduces errors, and strengthens your partner relationship.
Monday, 12 January 2026
Common EDI Interview Questions
1. A trading partner says they did not receive your EDI 850. What will you do?
Answer:
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Check outbound EDI logs
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Verify AS2/SFTP transmission status
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Look for 997 or MDN
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Re-send only if no acknowledgment received
2. You received a 997 with AK3/AK4 errors. What does that mean?
Answer:
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Structural or segment-level error
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Check which segment and element failed
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Correct mapping or data and resend
3. An ASN (856) is rejected but invoice (810) is accepted. Why?
Answer:
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ASN has stricter hierarchy rules
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Pack, item, or shipment loops missing
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Partner validates 856 more strictly
4. Control numbers are duplicated. What will happen?
Answer:
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Partner rejects the file
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Risk of duplicate processing
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Must reset or sync control numbers
5. A customer says invoice amount is wrong. How do you troubleshoot?
Answer:
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Compare ERP vs EDI
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Check price, quantity, tax, freight
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Validate mapping and rounding rules
6. What do you do if AS2 MDN is not received?
Answer:
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Check outbound status
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Verify partner server
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Retry or switch to async MDN
7. How do you onboard a new trading partner?
Answer:
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Collect partner specifications
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Setup communication
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Build mapping
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Test documents
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Get go-live approval
8. How do you handle a failed cutover?
Answer:
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Stop production flow
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Roll back to old system
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Fix issues
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Re-test and re-deploy
9. What causes duplicate EDI documents?
Answer:
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File resubmission
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Network failure
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Missing duplicate check
10. What is the difference between 997 and 855?
Answer:
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997 = technical receipt
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855 = business acceptance
11. A partner changes their EDI version. What must you do?
Answer:
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Update mapping
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Test all documents
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Validate backward compatibility
12. Why does EDI succeed but ERP posting fails?
Answer:
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Master data mismatch
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Invalid SKU, GLN, or customer code
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ERP validation errors
13. How do you prevent EDI chargebacks?
Answer:
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Validate ASN, invoice, ship dates
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Monitor rejections
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Follow partner rules
14. What Middleware tools and protocols you know?
Typical answer:
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Cleo, OpenText, IBM Sterling, SAP PI/PO, CPI
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AS2, SFTP, VAN, FTP
15. How do you monitor production EDI?
Expected answer:
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Dashboards
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Error alerts
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Acknowledgment tracking
Different Types of Orders (Business + EDI Perspective)
Purchase Order (PO) – Standard Order A formal request to buy goods at an agreed price and quantity. It is Used in Retail, Manufacturing, ...
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In EDI (Electronic Data Interchange), the DTM (Date/Time Reference) segment is used to specify dates, times, or date/time periods relevant ...
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The REF (Reference Identification) segment in X12 EDI transactions is used to specify reference information, such as codes, numbers, or ide...
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The TRADACOMS (TRAding DAta COMmunications Standards) standard was widely used in the UK for electronic data interchange (EDI) before being ...