, I'm just wondering that what time I can get the exactly number of cost and conversion in there cases below:
1. What time can I get the cost of yesterday campaign. (Ex: After 1am I can get the report of yesterday campaign, before 1am the report api will return null)
2. How many days does it take to fixed the number of that cost. (Ex: After 3 days, the cost number in report will be fixed and cannot be changed)
3. How many days does it take to fixed the number of conversion in report. (Ex: After 30days, the number of conversion in report will be fixed)