Expenses Booking

Pass entry for Advance payment

Advance exhibition expenses A/c Dr
To Bank. A/c Cr
( 50% advance payment)

pass entry for Invoice received

Exhibition expenses A/c Dr
To Trade Creditors A/c Cr
( Booking of expenses)

payment entry

Trade Creditors A/c Dr
To Advance exhibition expenses A/c. Cr
To Bank A/c Cr
( Balance 50% payment after advance adjustment for exhibition expenses)

Invoice can be booked fully but there is one scenario where one adjustment entry for revenue recognition needs to be passed. First the exhibition will spill over from one period to another accounting period.