def METHOD_NAME(self):
    """
    The enterprise customer uuid from request params or post body
    """
    if self.request.method in ('POST', 'PUT'):
        uuid_str = self.request.POST.get('enterprise_customer_uuid')
        if uuid_str is None:
            raise ParseError('Required enterprise_customer_uuid is missing')
        return uuid_str
    else:
        uuid_str = self.request.query_params.get('enterprise_customer_uuid')
        if validate_uuid4_string(uuid_str) is False:
            raise ParseError('Invalid UUID enterprise_customer_id')
        return uuid_str