To change a single transaction type:
Open the Trading Partners view from the navigation menu.
On the Trading Partner Identifiers page, click the partner to be edited and select the Preferences | Transactions menu.
From the Test/Production column under the Status tab, select Test or Production for this type of transaction.
Click the Save button to retain the changes.
NOTE:
Changing this setting affects all of the transactions in the Outbox for this trading partner.