If your BUSYagent not open automatically when system gets started even though added in startup, then might be systematic issue. However you can these troubleshooting steps:
Step 1: Uninstall all the BUSYagent setups and install a fresh one and check.
Step 2: Press Windows+R and type shell:startup.
Step 3: Paste the BUSYAgent application in that folder and check.
To generate JSON of GST returns from BUSY, you need to follow these steps:
Step 1: Open the Display menu and select GST Reports.
Step 2: Choose GST Return and then the return type you want to generate, such as GSTR-1 eReturn, GSTR-3B eReturn, etc.
Step 3: Choose the report format as JSON.
Step 4: Now enter the period and can generate the selected return in JSON format.