If the purpose of entering into Mexico is working there and you will receive a salary or payment, your employer will have to apply for prior authorization to the National Immigration Institute in Mexico. In that case, you will receive an authorization number (NUT number).
As soon as the NUT authorization has been issued, you must contact the Esta dirección de correo electrónico está siendo protegida contra los robots de spam. Necesita tener JavaScript habilitado para poder verlo. in order to schedule an appointment and to process a visa. Once you make the appointment you only will have 10 days for the interview and the issuance of your visa.

Visa applications will be received only Monday to Friday, from 9:00 A.M. to 11:00 A.M.
Click here to know which days the Consular Section will be closed

You can also request an appointment through MEXITEL, a free online appointment system, at the following link:
You will need to set up an account and choose the most suitable time for your appointment at the Consular Section of the Embassy. Once you have booked your appointment, the system will generate a confirmation letter, which you must bring with you to the Embassy on the day of your appointment. The letter can also be sent to the email account that you provide.
Early application is highly recommended. Please note that, if you wish to reschedule or if you miss your appointment, you will need to file a new request following the above procedure.