"suppressAuth" is not working

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Thanks for reply. and Sure, This is backend.
export async function overwriteContactInfo ( contactId , updatedContactInfo , options ) {
// Get the contact’s last revision number
const myContact = await contacts . getContact ( contactId );
const contactIdentifiers = {
contactId : contactId ,
revision : myContact.revision
};

return await contacts . updateContact ( contactIdentifiers , updatedContactInfo , options );
}

and this is front

$w ( “#button2” ). onClick (() => {
$w . onReady ( async function () {

    **let**  UID  =  $w ( '#input4' ). value ; 

    //current member's contactId 
    **function**  getcontact ( options ) { 
        **return**  currentMember . getMember ( options ) 
            . then ( member  => { **return**  Promise . resolve ( member.contactId );}) 
            . **catch** ( err  =>  console . log ( err )); 
    } 
    **const**  contactId  =  ''  +  **await**  getcontact (); 
    
    **const**  contactInfo  = { 
    extendedFields : { 
    "custom.uid" :  UID 
    } 
    }; 
    **const**  options  = { 
    allowDuplicates :  **false** , 
    suppressAuth :  **true** 
    }; 

        overwriteContactInfo ( contactId ,  contactInfo ,  options ); 

})

});
});

is there anything wrong this code?