How long is the pick-up code of the rookie station valid?

Five days. Official website of Cainiao Station shows that the free storage period of Cainiao Station's service receipt is within 5 days from the date of parcel signing, and Cainiao Station's pick-up code is valid within 5 days. The parcel will be returned automatically if it is not signed for more than 5 days. If the parcel is not picked up within the time limit, the rookie station has the right to return the parcel, or charge a reasonable overdue storage fee for the parcel according to its own situation. The charging standard is subject to the actual publicity on site.