Changed segment &1 uses a different data element

What causes this issue?

Segment &v1& is to be changed. For field &v2&, a different data element
&v3& was specified for this purpose. The <DS:TRAS.WE31(SEG.&v1&)>
original segment &v1& </> uses for this field, &v2&, data element &v4&.

System Response

The change is rejected. The data elements of the fields in the changed
segment must match the data elements of the existing fields in the
original segment.

How to fix this error?

Check the consistency of the segment fields.

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