Unable to delete address via SADR transaction or via web transaction

Hi Gurus,

I had a query regarding address maintenance in SRM5.0

Currently, we maintain the address using web transacton "Maintain Address for own company code".

Now, I am unable to delete the address. There is no "delete" option in web-transaction and when I tried deleting via SADR transaction, system gives me an error message "Address can only be created in primary object (ID in table TSAD7)".

How do I proceed ahead with deletion of the addresses?

Regards,

Ancy