The transaction details:

If you create purchase order Cost amount = 10000 purchase order invoiced amount. 

And landed cost estimate = 1000

In transactions details:

Adjustment = 1000 = Estimate of the service landed cost. 

• The record of the estimated landed cost for the purchase order is available in transactions - Settlements. 
• The record is not available in the voucher since its estimate - record appears with the invoiced amount when its invoiced only. 
• would like the record to be available in the voucher even as temporary record.