Do tracking codes -----> &tc=FB2025 work anymore?

[glitter]

Hi everyone, 

Just curious if tracking codes on newly created links are working anymore? I've noticed for a while now that while I do get referrals and can see the tracking codes on older pins I can not see them on anything recent. I really like this feature because it helps me to know where my traffic is coming from and what products get the most traffic from which platform. Some themes I have had in the past did better on Facebook while others excelled on Pinterest for example. 

[kemo4ever]

Hello glitter

I Hope you are well

I am facing a problem of not getting a referral earning, I don't know the reason for that, So if there is any solution for this I will be thankful.

Notice that is A lot of sales comes from pinterest platform

with Best Regards