When logging on to a BW system via the SAPGui, you can access your user (role) menu. Within this user menu/SAP easy access menu, a hierarchy of roles/menu entries will be displayed upon wich can be clicked. Clicking such an entry generated a shortdump (MESSAGE_TYPE_X) which was not self explanatory. (Program CL_GUI_CFW====================CP dumps)
Searching OSS led to note 362883 which advised to enter 3 values in table SSM_COL.

The values displayed in the picture above are max. values. Exceeding these max. values has no purpose as the default value will be taken (in case of exceeding).