What is a Segment?

Answer

Segment defines the format and structure of a data record in IDOC. Segments are reusable components.

For each segment SAP creates

• Segment Type (version independent)
• Segment Definition (version dependent)
• Segment Documentation

The last 3 characters is the version of the segment

Definitions keep changing as per the version but the segment type remains the same.

Transaction :WE31