Project / Financial Manager Project / Manager Project / User Project multi-company ['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])] Task multi-company ['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])] Tasks According to User and Project ['|','|',('user_id','=',user.id),('project_id.members','=',user.id),('project_id.user_id','=',user.id)]