Company AUTH object for Z-Tocdes

Hi,

Development team has created a Z-tcode, for which we need to restrict Access.

Restriction is based on company code.

we have created a role for this Z-tocde and assigned the required company code at Organizational level.

We have tried invoking the corresponding auth object from our program also.

But nothing seems working.

Can anyone guide me in this regard.

Thanks in advance,

Regards,

Sridevi