Sage 50 Accounts

Hiya Using sage 50 accounts, setting our system up and customising the layouts. How do I include & show retention being deducted on the invoice?

How do I account for retentions receivable please? Do I invoice the customer the full amount and credit the retention value? And then re-invoice the retention value on the due date? What N/C would these go to?

When sending a service invoice, we show the deduction of retention on the invoice which goes to a different nominal code to allow us to control the amount outstanding for retentions held. I have just tried to create this but sage will not allow it …