Permission required: CONTACTS.MODIFY_MEMBERSHIP_STATUS"

Hello,

In the back-end code of a wix website I want to update he membershipstatus of a contact using updateContact in wix-crm-backend

extendedFields : {
“members.membershipStatus” : “DENIED”
}

But I keep getting : Permission required: CONTACTS.MODIFY_MEMBERSHIP_STATUS"
When I try to update another extendedField it works .

And 'm using :
{
“suppressAuth” : true
}

Can anyone tell me how and where I can tweak the permission ?

Thanks