winter transfer market in portugal only starts on january 3rd

What are you suggesting the date should be, and what do we have it as in game? Do you have a source for any dates you're wanting to implement? 

Fifa List  page 14

https://digitalhub.fifa.com/m/680099dc838c2961/original/Transfer-Window-Calendar_MFA_S_20211201.pdf

3rd January to 2nd February

Some people dont read the rules and only know how to complain. 

It´s been this way for a long time in Portuguese league. My game (FM22) always happen this dates, so why change?!  But the dates are right. Close topic. Fix match engine now! Have fun