While pressing okay button in a custom time card application, the application shows 'Processing...' message in E1 8.12
When checked, the custom application write grid records to a table with millions of records( it uses Fetch, Insert or Update operations). I guess this is the issue. But noted that the application works find in development server. Also noted that even in the productions, the "okay" button operations saves the information even it shows the processing message.

I thought to move all the okay button code to an NER business function as it is more faster than in-line code. But I have to send lot of data thru data structure.

Now, how I can isolate the issue and know what is the root cause.