There is no way to put a Prepaid into the sales module through historical transactions.

Therefore, you have to enter it in one of two ways, depending on how you set up the company.

If you set up the company based on the last day of the previous system, then you can add it as a Receipt entry on the last day of using the old system (this is a more advanced method of setup used for specific purposes).

If you are starting the company file on the first day of using the Sage 50 file (this is the normal default), then you will have to enter it as a negative invoice in the Historical tab of the customer.  Then on the Balance sheet account opening balances, include it as part of the balance for Accounts Receivable.

There is no way to put a Prepaid into the sales module through historical transactions.

Therefore, you have to enter it in one of two ways, depending on how you set up the company.

If you set up the company based on the last day of the previous system, then you can add it as a Receipt entry on the last day of using the old system (this is a more advanced method of setup used for specific purposes).

If you are starting the company file on the first day of using the Sage 50 file (this is the normal default), then you will have to enter it as a negative invoice in the Historical tab of the customer.  Then on the Balance sheet account opening balances, include it as part of the balance for Accounts Receivable.