Next month USPS introduces paid tracking access (paid per delivery/request) for 3rd party apps like Parcel.

What does it mean for you if you are tracking USPS deliveries in Parcel?

If you are a subscriber, you should be able to track 3-5 deliveries per month with real-time updates.

However, if you track more than that or if you are a free (or legacy premium) user, USPS deliveries will be severely delayed for you.

More details will be available next month. USPS info:

https://postalpro.usps.com/Tracking_APIAccess_Control_Changes_Release_Overview

Tracking API Access Control Changes Release Overview | PostalPro

@parcel I’m a premium subscriber. Does this mean I’ll be unaffected by the USPS changes, or will the 3–5 deliveries/month limit apply to me as well? And what happens if I exceed that limit — delayed updates only, or no updates at all?
@markmaster You will be affected, the limit will apply, your subscription will be used to cover USPS charges. No further details yet, USPS is rushing this new system, honestly it is not ready yet at all.