EANCOM® 2002 S4 Edition 2016 Part II
APERAK Application error and acknowledgement message
5. Segments Layout
 
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UNA - C 1 -
Service string advice
  Function:
  The service string advice shall begin with the upper case characters UNA immediately followed by six characters in the order shown below.  The space character shall not be used in positions 010, 020, 040, 050 or 060.  The same character shall not be used in more than one position of the UNA.
 
EDIFACT
EAN *
Description
UNA1
Component data element separator
M an1
M *
Used as a separator between component data elements contained within a composite data element (default value: ":")
General explanations
UNA2
Data element separator
M an1
M *
Used to separate two simple or composite data elements (default value: "+" )
General explanations
UNA3
Decimal mark
M an1
M *
Used to indicate the character used for decimal notation (default value:".")
General explanations
UNA4
Release character
M an1
M *
Used to restore any service character to its original specification (value: "?").
General explanations
UNA5
Repetition separator
M an1
M *
Used to indicate the character used for repetition separation (value: " * " ).
General explanations
UNA6
Segment terminator
M an1
M *
Used to indicate the end of segment data (default value: " ' ")
General explanations
Segment Notes:
This segment is used to inform the receiver of the interchange that a set of service string characters which are different to the default characters are being used.
When using the default set of service characters, the UNA segment need not be sent. If it is sent, it must immediately precede the UNB segment and contain the four service string characters (positions UNA1, UNA2, UNA4 and UNA6) selected by the interchange sender.
Regardless of whether or not all of the service string characters are being changed every data element within this segment must be filled, (i.e., if some default values are being used with user defined ones, both the default and user defined values must be specified).
When expressing the service string characters in the UNA segment, it is not necessary to include any element separators.
The use of the UNA segment is required when using a character set other than level A.
UNA:+.?*'
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