Hi Akash,
if the object name is invalid that means you aren't able to find it.
So either the table name is not valid or the table doesn't exist. Try to find it in OutSystems dictionary.

Other possibility is you are looking into another database connection. leave the parameter below empty.

Connection_Name

You also can make sure you have espace name filled. if you are not using the physical table name it'll prevent you from getting another table with the same name from another espace.

Espace_Name

Let me know if it's not working and give more details.
Thanks.

Hi Paulo,

actually i have checked the table in the outsystems dictionary in the entity table and the espace name is also correct and the connection name is empty but still i am getting this error