What is the reason that the trip code has no trip data?

There may be several reasons why the travel code can't find the travel track:

1. The user's call in the past 14 days does not have enough valid data. Users need to record the call data of a city with the earliest and latest interval of more than 4 hours in recent 14 days to display the itinerary.

2. Newly opened calling card. Users of China Telecom, China Mobile and China Unicom can use the travel card service. Users with new accounts can only use this service after 14 days. ?

3. There is an error in the travel card data.

Because when the operator determines the conditions of the stay trip, in the recent 14 days, the data is mainly called in a city, and the passenger flow will not be used as the basis for judgment. All the travel data of the communication big data travel card are pushed by the specific province of the operator, and there may be some delay, but they are basically pushed from 10 morning to 4 pm.