An organization that does not fulfil this obligation will not be entitled to the authority of a company trade union organization. However the organization will obtain it again after submitting the information on the number of members. 

The lack of authority of a company trade union means that the employer is exempt from the obligation to cooperate with such an organization. Thus, among other things, there is no obligation to consult with it on decisions to lay off employees.
 

Find more in the PRO HR December 2023