You can directly assign a user account parameter on the Parameter tab and specify its values. You can also see if a parameter is assigned directly, indirectly, or both ways.
To assign a parameter directly to user accounts
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In the Manager, select the SAP R/3 > User accounts category. 
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Select the user account in the result list and run the Change main data task. 
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Select Parameter. 
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Click Add. This inserts a new row in the table. 
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Click to mark this row. 
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Select a parameter from the Parameter menu and specify a parameter value. 
- Save the changes.
To edit a parameter value
- Select the Parameter tab.
- Select the parameter whose value you want to edit, in the list.
- Change the parameter value.
- Save the changes.
To remove a parameter’s direct assignment
- Select the Parameter tab.
- Select the parameter you want to remove.
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If the parameter is only assigned directly, click remove. - OR - If the parameter is assigned both directly and indirectly, disable Direct assignment. 
- Save the changes.
