Here is the part were they are mentioning 120 days:
The Federal Skilled Worker application kit states, “Consult the Visa Office specific requirements now to determine what documents you will need to provide once your application is recommended for processing at a Visa Office. If you are not prepared to submit full documentation to the Visa Office within 120 days do not apply now. Visa Offices are strictly enforcing the 120 day rule and will not provide extensions.”
Note: Once the 120 days has elapsed, a final eligibility of determination will be made based on the information on file. A negative determination of eligibility for processing is final and will result in the closure of your file. Documents must be submitted in a SINGLE package
The Federal Skilled Worker application kit states, “Consult the Visa Office specific requirements now to determine what documents you will need to provide once your application is recommended for processing at a Visa Office. If you are not prepared to submit full documentation to the Visa Office within 120 days do not apply now. Visa Offices are strictly enforcing the 120 day rule and will not provide extensions.”
Note: Once the 120 days has elapsed, a final eligibility of determination will be made based on the information on file. A negative determination of eligibility for processing is final and will result in the closure of your file. Documents must be submitted in a SINGLE package