Follow the below steps to delete specific expense postings if a expenses batch has been authorised:
Select Expenses Claims on the Home tab of the Fee Earner Desktop.
Select the batch these expense claims are in and select Reject.
Select View and select each entry that you no longer need and click on Delete.
Close down the screen and go back to the main Expenses Claims Enquiry.
Select Resubmit and click Ok after selecting who you require to authorise the batch..
This will leave the batch there to be authorised again.