Why is the software showing more invoices from my supplier than I have in my records? How can I fix this?

If recorded invoices in BUSY are more than supplier invoice then you can check that which invoice you have not entered in BUSY and it can be possible through GST Reconciliation in BUSY.From GST Reconciliation feature in BUSY you can check your invoice in BUSY and on portal and match your enrtries. You can follow some steps for GST Reconciliation:
 Step 1: Go to the Transaction tab and click on GST Misc.Utilities. 
 Step 2: After click on GST Misc.Utilities select the Download GSTR JSON Data option. 
 Step 3: After select the Download GSTR JSON Data option you have to click on the type of GSTR Return GSTR 2B For which you want to Reconcile your Data and then click on the download option then OTP will be sent to Your Registratered mail and contact no. on Gst Portal and your GSTR Json will become save after enter OTP. 
 Step 4: To access this downloaded GSTR JSON Data,go to the Reconcile GSTR Data Option just below the Download GSTR JSON Data option And select GST Return type GSTR 2B party wise or Voucher wise ,and speciy the Time period enable other feature as per your requirement and click on OK option. 
 Step 3: Now you can see your BUSY data and JSON date.If Data showing in JSON Section but not in BUSY then you need to enter that voucher in BUSY with JSON Amount.After that Your invoices and Supplier invoices will be match.