• Typically, an EDI document begins in a trading partner's business application computer system. 

• A document is produced and sent to a specialized computer program that translates the document into a standard EDI format.
• The EDI file is then transmitted, usually via the trading partner's VAN.  
  
• When the VAN receives the transmission, it is sent to the intended recipient's mailbox, identified by its EDI ID. 
  
• The trading partner receives the document from its VAN when it connects and empties its mailbox. 
  
• Through the use of an EDI translation program, the document is translated into a file that will be processed by the trading partner's business application system. 
  
• During the inbound translation process, a new EDI document is transmitted back to the sender to acknowledge receipt of the document.   This new document, the functional acknowledgment (FA), assures the sender that its transmission has been received.

EDI Associates - free online Standards Browser

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The last digit of a bar code number is a computer Check Digit which makes sure the bar code is correctly composed.

This page contains the following information:

• GTIN Check Digit Calculator
• SSCC Check Digit Calculator
• How to calculate a Check Digit manually