What is the required notice period for an employee resignation in Portugal?

Supported employees in Portugal are required to provide notice before resignation based on the duration of their employment agreement:

• 15 days' notice for employment agreements of less than 6 months.
• 30 days' notice for employment agreements of 6 months or more, up to 2 years.
• 60 days' notice for employment agreements of more than 2 years.