The activation time for Universal Account Number (UAN) can vary depending on several factors, including the organization’s size, the efficiency of its HR department, and the time taken for verification of the employee’s details. Typically, it takes around 5-10 working days for the UAN to get activated after the employer registers the employee’s details with the Employees’ Provident Fund Organisation (EPFO) and generates the UAN. However, it is important to note that the activation time may vary based on individual cases and the internal processes of the organization and EPFO. If you have not received the UAN activation details after 10 working days, you should contact your employer or EPFO for assistance.