BUSY has an option to reconcile your GST reports such has GSTR-1, GSTR-2B, GSTR-2A, GSTR-3B, etc. You can use these steps to do the same:
Step 1: Go to Administration and click on Configuration then Features / Options.
Step 2: Select GST / VAT and here mention your portal username and save.
Step 3: Next, download your GSTR Json data from the Transaction menu and click on GST Misc. Utilities.
Step 4: Click on "Download GSTR JSON Dataand choose the report which you want to download GSTR-1, GSTR-2A,etc.
Step 5: After dowload required file, click on "Reconcile GSTR Dataand select the approriate file with the require period and can reconcile your books data with the portal data.