It is advisable to take into account the potential need to follow up on your complaint after a grievance mechanism has closed or concluded your case. Most grievance mechanisms will issue a final statement or report when the process concludes.
In some cases, you can appeal, but in other cases you cannot. Some grievance mechanisms may monitor the situation, and you may play a role in that regard. Other mechanisms might enforce the decisions or outcomes of the process. If you are unsatisfied with the outcome, you can consider using other grievance mechanisms.