Not showing the Data in VC application

Hi I have developed the application in VC.
It is showing the data some times , it is not showing the data. Can u please let me know what is the problem.
when i checked using the Test Data service . It is showing the data. Then i have developed step by step, in between the time i use to run the application , it was showing the data. finally i have assigned to some role and user id. then also it is showing the data.
Next day after i run the application , it is not showing the data. displaying the message .
"No Data Found".
But when i run the BAPI at the back end R/3 it is giving the data properly.
Can u tell me what might be the problem
REgards
Vijay

Hi Krishna,
check the logs in the NWA. It seems that your connection is broken down sometimes, maybe a timeout. How many records does your data service return?
Check it with external debugging of the BAPI, when you can reconstruct the error.
Best Regards,
Marcel

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