This section describes the structure of the record layouts provided
with base product flat file letter extract algorithms. All algorithms
follow a common pattern and each specific letter extract algorithm
includes the details specific for its letter.
The following points highlight the common structure:
- The first 4 bytes are called the Record Type. This field
is used to identify the type of record.
- The next 26 bytes are called the Sort Key. This field
is used to ensure the various records used to construct a printed
letter appear in the correct order in the interface file.
- The next 12 bytes are called the Mailing Key.
- The remaining bytes contain the Letter Information that
appears on the printed letter. The type of information differs for
each record type.
The topics in this section describe each component.
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