Please select fewer key figures or reduce the column width.

What causes this issue?

A list cannot be any wider than 1023 characters. The active user
setting or exception contains so many key figures, or the column is so
wide that the maximum width of 1023 characters has been exceeded.

System Response

The program does not display all key figures selected.

How to fix this error?

In the active user setting or in the exception, please delete some key
figures that you do not require, or specify a smaller column width.

Error message extract from SAP system. Copyright SAP SE.