• Go to Transactions > Purchase > Modify Bill.
  

• A 'Modify' window will appear.

• The user will select the options as per the Requirement i.e. Bill Date, Bill number etc.

• A 'Purchase as on' window will appear.

• The user will select the bill which needs to be canceled and press 'Enter' on it.

• A 'Purchase Alteration' window will appear.

• The user will click on ‘Cancel’.

• Now a 'Cancellation Remark' window will appear in which the user will enter the remark (i.e. reason to cancel the entry).

Note: It is mandatory to give remark before the cancellation of entry.

• Now, an alert of 'Be Careful' will appear.

• Click on ‘Yes’ to cancel the entry.

After following the above Steps, the Purchase bill will get canceled.