Message : CPD5B23
All dialog variables in list for COLHEAD attribute on LISTCOL tag must have same base type.
Message Long Text :
Cause . . . . . : All dialog variables in the variable list for the COLHEAD attribute on the LISTCOL tag must be defined with the same base type. One or more dialog variables specified in the list has a different base type. Recovery . . . : Define the dialog variables in the variable list for the COLHEAD attribute on the LISTCOL tag so that all variables have the same base type; or remove all dialog variables from the list that have a different base type. Then try the request again.