To manually generate e way bills for credit notes in BUSY, you can follow these steps:
Step 1: Open BUSY and go to Administration.
Step 2: Click on Configuration and then select Voucher series configuration option and select the voucher type Sale Return (Cr. Note).
Step 3: Then, select the voucher series and click on Voucher Configuration.
Step 4: Here, you will see options of Input Transport Details, Generate E way bill After Saving, set Y to enable that.
Step 5: Now add sale return (Cr. note) voucher from transaction tab and generate eway bill automatic.