Configuring Your Product › Customization Options › Limiting ISPF User Access to Data Sets › Defining ISPF and DSCL User Options › Field 1 — TSO USERID

Field 1 — TSO USERID

This field is a TSO USERID or prefix (partial user ID ending with a slash). This field must start in the first position of the entry after the starting single quote. The slash (/) can be used to indicate groups of users to which the entry applies. A single slash indicates that the entry applies to all users. This field must be followed by one or more spaces.