GS1 application barcode identifiers (AIs) are numerical prefixes that help specify the meaning and format of data encoded in barcodes, aiding in their interpretation. They are essential for various GS1 barcode standards and support both human-readable information and machine processing. There are over a hundred AIs, each with specific uses, formats, and examples, such as the Serial Shipping Container Code (SSCC) and Global Trade Item Number (GTIN).

1. Barcode Identifiers
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2. Table of Content
What Are GS1 Application Barcode Identifiers?
What Are The Uses Of Application Identifiers In GS1
Barcodes?
How To Use GS1 Application Barcode Identifiers?
Examples Of GS1 Application Barcode
Identifiers
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3. 01. What Are GS1 Application
Barcode Identifiers?
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4. GS1 Application Identifiers (AIs) are numerical
prefixes that specify the meaning, format, and
length of encoded data items.
They are used to decipher the information
encoded in a barcode.
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Definition

5. Multiple pieces of information can be stored
in certain types of GS1 codes
Data items in the user's memory bank can be
encoded using GS1 AIs
There are over a hundred different GS1
Application Identifiers (AIs)
Facts
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6. 02. What Are The
Uses Of
Application
Identifiers In GS1
Barcodes?
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7. Benefits
Display the meaning of a barcode
Required in the GS1 barcode standards: GS1-128, GS1 DataBar, GS1 QR
Code, GS1 DataMatrix
Promote human readable interpretation
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8. 03. How To Use GS1 Application Barcode
Identifiers?
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9. How To Use
A GS1 AI & a GS1 AI data field are combined to form an element string
Following an AI, data can be alphabetic or numeric, with fixed or variable
lengths. As a field separator, the symbology character FNC1 is utilized
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10. 04. Examples Of
GS1 Application
Barcode Identifiers
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11. AI Name Format Date Title
AI 00
SSCC (Serial Shipping
Container Code)
n2+n18 SSCC
AI 01 Global Trade Item Number n2+n14 GTIN
AI 02
GTIN of Trade Items
Contained in a logistic unit
n2+n14 CONTENT
AI 10 Batch or lot number n2+an..20 BATCH/LOT
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12. AI Name Format Date Title
AI 11 Production date (YYMMDD) n2+n6 PROD DATE
AI 12 Due date (YYMMDD) n2+n6 DUE DATE
AI 13 Packaging date (YYMMDD) n2+n6 PACK DATE
AI 15 Best before date (YYMMDD) n2+n6
BEST BEFORE
or SELL BY
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13. AI Name Format Date Title
AI 17 Expiration date (YYMMDD) n2+n6
USE BY OR
EXPIRY
AI 20 Product variant n2+n2 VARIANT
AI 30 Variable count n2+n..8 VAR. COUNT
AI 37
Count of trade items
contained in a logistic unit
n2+n..8 COUNT
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14. barcodelive.org