X12
Outbound

ExpertVoice X12 855 Purchase Order Acknowledgment

ExpertVoice
The EDI 855 confirms receipt and acceptance of a ExpertVoice Purchase Order. Suppliers must respond promptly indicating whether the order is accepted, rejected, or accepted with changes to maintain compliance standing.
8segments
2loops
5mandatory

Schema Reference

8 segments · X12 855 Purchase Order Acknowledgment

ISA ISA Interchange Control Header
Mandatory Max: 1
ISA01 Authorization Information Qualifier
M ID 2-2
ISA02 Authorization Information
M AN 10-10
ISA03 Security Information Qualifier
M ID 2-2
ISA04 Security Information
M AN 10-10
ISA05 Interchange ID Qualifier
M ID 2-2
ISA06 Interchange Sender ID
M AN 15-15
ISA07 Interchange ID Qualifier
M ID 2-2
ISA08 Interchange Receiver ID
M AN 15-15
ISA09 Interchange Date
M DT 6-6
ISA10 Interchange Time
M TM 4-4
ISA11 Interchange Control Standards Identifier
M ID 1-1
ISA12 Interchange Control Version Number
M ID 5-5
ISA13 Interchange Control Number
M N0 9-9
ISA14 Acknowledgment Requested
M ID 1-1
ISA15 Usage Indicator
M ID 1-1
GS GS Functional Group Header
Mandatory Max: 1
GS01 Functional Identifier Code
M ID 2-2
GS02 Application Sender's Code
M AN 2-15
GS03 Application Receiver's Code
M AN 2-15
GS04 Date
M DT 8-8
GS05 Time
M TM 4-8
GS06 Group Control Number
M N0 1-9
GS07 Responsible Agency Code
M ID 1-2
GS08 Version / Release / Industry Identifier Code
M AN 1-12
ST Transaction Set Header
Mandatory Max: 1
ST01 Transaction Set Identifier Code
M ID 3-3
ST02 Transaction Set Control Number
M AN 4-9
BAK Beginning Segment for Purchase Order Acknowledgment
Mandatory Max: 1
BAK01 Transaction Set Purpose Code
M ID 2-2
BAK02 Acknowledgment Type
M ID 2-2
BAK03 Purchase Order Number
M AN 1-22
BAK04 Date
M DT 8-8
BAK09 Date
O DT 8-8
DTM Date/Time Reference
Optional Max: 10
DTM01 Date/Time Qualifier
M ID 3-3
DTM02 Date
C DT 8-8
PO1 Loop Repeat: 100,000
PO1 Baseline Item Data
Optional Max: 1
PO101 Assigned Identification
O AN 1-20
PO102 Quantity Ordered
C R 1-15
PO103 Unit or Basis for Measurement Code
O ID 2-2
PO104 Unit Price
C R 1-17
PO105 Basis of Unit Price Code
O ID 2-2
PO106 Product/Service ID Qualifier
C ID 2-2
PO107 Product/Service ID
C AN 1-48
PO108 Product/Service ID Qualifier
C ID 2-2
PO109 Product/Service ID
C AN 1-48
PO110 Product/Service ID Qualifier
C ID 2-2
PO111 Product/Service ID
C AN 1-48
CTT Loop Repeat: 1
CTT Transaction Totals
Optional Max: 1
CTT01 Number of Line Items
M N0 1-6
CTT02 Hash Total
O R 1-10
SE Transaction Set Trailer
Mandatory Max: 1
SE01 Number of Included Segments
M N0 1-10
SE02 Transaction Set Control Number
M AN 4-9
How It Works

Automating ExpertVoice EDI 855

Stacksync validates, transforms, and delivers your 855 transactions automatically — so your team can focus on operations, not EDI compliance.

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Stacksync generates and sends 855 Purchase Order Acknowledgments automatically when your system confirms an order. Accept, reject, or modify line items through your ERP — Stacksync handles the EDI formatting and transmission.

ExpertVoice EDI 855 FAQ

Common questions about 855 Purchase Order Acknowledgment transactions with ExpertVoice.

How quickly must I respond to a ExpertVoice 850 with an EDI 855?

ExpertVoice compliance programs generally require an EDI 855 Purchase Order Acknowledgment within 24 to 48 hours of receiving the 850. Some ExpertVoice business units or time-sensitive product categories may have tighter windows. Failing to acknowledge within the deadline can result in compliance penalties, reduced scorecard ratings, and in some cases automatic PO cancellation. Stacksync can send 855 acknowledgments automatically the moment your system processes the incoming PO, well within ExpertVoice's required timeframe. The platform logs every acknowledgment with timestamps for compliance auditing.

How quickly must I respond to a ExpertVoice 850 with an EDI 855?

ExpertVoice compliance programs generally require an EDI 855 Purchase Order Acknowledgment within 24 to 48 hours of receiving the 850. Some ExpertVoice business units or time-sensitive product categories may have tighter windows. Failing to acknowledge within the deadline can result in compliance penalties, reduced scorecard ratings, and in some cases automatic PO cancellation. Stacksync can send 855 acknowledgments automatically the moment your system processes the incoming PO, well within ExpertVoice's required timeframe. The platform logs every acknowledgment with timestamps for compliance auditing.

What status codes can be sent in a ExpertVoice EDI 855?

The ExpertVoice EDI 855 supports several acknowledgment status codes in the BAK and ACK segments: accepted as ordered (AC), accepted with changes (AD), backorder (BO), rejected (RJ), and item not found (IF). You can acknowledge the entire PO at the header level or respond line by line with different statuses — for example, accepting most items while backordering one and rejecting another. Stacksync lets you define business rules that automatically assign these status codes based on your inventory availability, pricing validation, and fulfillment capacity, removing the need for manual line-by-line review.

What status codes can be sent in a ExpertVoice EDI 855?

The ExpertVoice EDI 855 supports several acknowledgment status codes in the BAK and ACK segments: accepted as ordered (AC), accepted with changes (AD), backorder (BO), rejected (RJ), and item not found (IF). You can acknowledge the entire PO at the header level or respond line by line with different statuses — for example, accepting most items while backordering one and rejecting another. Stacksync lets you define business rules that automatically assign these status codes based on your inventory availability, pricing validation, and fulfillment capacity, removing the need for manual line-by-line review.

Is an EDI 855 required for every ExpertVoice Purchase Order?

Most ExpertVoice compliance programs require an 855 for every 850 PO received. However, some ExpertVoice divisions or product categories may not enforce the requirement, especially for smaller suppliers or specific fulfillment models. Even when not strictly mandatory, sending an 855 is best practice — it confirms receipt, prevents duplicate PO transmissions, and establishes a clear audit trail. Stacksync configures 855 responses per ExpertVoice business unit, so you can automate acknowledgments where required while handling exceptions for divisions with different compliance expectations.

Is an EDI 855 required for every ExpertVoice Purchase Order?

Most ExpertVoice compliance programs require an 855 for every 850 PO received. However, some ExpertVoice divisions or product categories may not enforce the requirement, especially for smaller suppliers or specific fulfillment models. Even when not strictly mandatory, sending an 855 is best practice — it confirms receipt, prevents duplicate PO transmissions, and establishes a clear audit trail. Stacksync configures 855 responses per ExpertVoice business unit, so you can automate acknowledgments where required while handling exceptions for divisions with different compliance expectations.

What happens if I reject a line item in a ExpertVoice EDI 855?

When you reject a line item in the ExpertVoice 855 using the RJ status code, ExpertVoice's ordering system is notified that you cannot fulfill that specific item. Depending on ExpertVoice's policies, they may issue a revised 850 with alternative items, cancel the line, or source the product from another supplier. Partial rejections — where you accept some lines and reject others — are common and supported through line-level ACK segments. Stacksync tracks rejected lines and can trigger alerts so your sales or fulfillment team can follow up with ExpertVoice proactively.

What happens if I reject a line item in a ExpertVoice EDI 855?

When you reject a line item in the ExpertVoice 855 using the RJ status code, ExpertVoice's ordering system is notified that you cannot fulfill that specific item. Depending on ExpertVoice's policies, they may issue a revised 850 with alternative items, cancel the line, or source the product from another supplier. Partial rejections — where you accept some lines and reject others — are common and supported through line-level ACK segments. Stacksync tracks rejected lines and can trigger alerts so your sales or fulfillment team can follow up with ExpertVoice proactively.

Can Stacksync automate ExpertVoice EDI 855 responses?

Yes. Stacksync automates ExpertVoice 855 responses by connecting to your inventory and order management systems. When a ExpertVoice 850 arrives, Stacksync checks stock levels, validates pricing against your catalog, and confirms fulfillment capacity. Based on configurable business rules, it generates the appropriate 855 with acceptance, modification, or backorder status codes — all without manual intervention. You can set thresholds for automatic acceptance (e.g., accept if all items are in stock) and escalate edge cases to your team for review. The entire response cycle typically completes in under a minute.

Can Stacksync automate ExpertVoice EDI 855 responses?

Yes. Stacksync automates ExpertVoice 855 responses by connecting to your inventory and order management systems. When a ExpertVoice 850 arrives, Stacksync checks stock levels, validates pricing against your catalog, and confirms fulfillment capacity. Based on configurable business rules, it generates the appropriate 855 with acceptance, modification, or backorder status codes — all without manual intervention. You can set thresholds for automatic acceptance (e.g., accept if all items are in stock) and escalate edge cases to your team for review. The entire response cycle typically completes in under a minute.

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