Meeting/Call/Task not sync to Calendar

Meeting/Call/Task not sync to Calendar when i add or update one of them via soap api…
How to solve it?
This problem i also have problem in SugarCRM 6.5.7

Thanks

Did your API code work in previous versions? Have you tried to debug the code?

Thanks,

Will.

No i didnt debug it , but this problem is also for newer version or community edition…