Check the characteristic description and headings

What causes this issue?

You have entered a reference to table field &V2&-&V3& for
characteristic &V1&. However, a description has already been saved for
the characteristic.

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?

Please check whether the characteristic description and headings are
suitable for the table field.

Error message extract from SAP system. Copyright SAP SE.