Table maintenance Generator + Tcode for SM30

Hi,

I have created a table maintenance generator for a Z table. Then I created a transaction from SE93 for SM30 and passing table name as parameter.

My requirement is that the user should only be able to delete records from the Z table. It should not allow to insert or modify records.

When I execute the transaction created above it is allowing to insert, modify and delete records from Z table.

How to solve this issue? Please help.

Thanks in advance....

Regards,

Sriram