• Go to Transactions > Sale > Modify Bill.

• A 'Modify Bill' window will appear. 

• The user will select the options as per the requirement i.e. bill no, bill date etc.

• Now all the bills of the selected date range will get appear to the user. 

• The user will select the bill in which the item needs to be added.

• Suppose select '00000008'.

• A 'Sale Alteration' window will appear.

• The user will select 'Modify'.

• Now the user will press 'Enter' to select the additional item in the bill.

• An 'Items' window will appear. 

• The user will select the item as per the requirement. 

• Suppose select 'Acnederm Lot'.

• Now the user will select the batch of the item as per the requirement. 

Note: If the user is not having batch wise setup then this window will not get appear to them.

• Then the selected item will get loaded into the bill. 

• The user will press 'Ctrl+W' key to save the details.

• A 'Save Changes' window will appear. 

• The user will click on 'Yes' to save the changes.

In this way the user can add additional item into the old bill.