Specify a column width > 0

What causes this issue?

You are editing the column elements of a table control and entered a
column width of 0. This value is not valid. A column must be at least 1
character in width.

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?

Enter a value larger than 0.
If you want to delete the column, use the "Cut" function.

Error message extract from SAP system. Copyright SAP SE.