SEG016 - Top segment of a code page must be of sequence type

SAP Error Message - Details

• Message type: E = Error

• Message class: SEG - Code Page Segments

• Message number: 016

• Message text: Top segment of a code page must be of sequence type

What causes this issue?

Code Pages consist of segments.
Simple segments can contain a rule or a set of
character-codepoint-pairs (mappings). Larger segments are created by
combining several smaller segments into a new segment with type
'sequence'.
The content of a code page is defined by assigning it a segment.
To allow simple management, this segment must be of the type
'sequence'. (In all normal cases this condition is met automatically.)

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you want to create a very simple code page that contains only one
rule or only one set of character-codepoint-pairs, you must also define
a 'sequence'-type segment, which only contains the segment you
previously selected.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.