Adding or modifying an Account Code Select Master Data Management > Account Code. The Account Code list page is displayed. Click Create. The account code details window is displayed. Note: You can modify an existing account code using the View icon displayed on the Account Code list page. Specify this information: Account Code The unique identification code of the account. Description The description for the account code. Select the Default check box to set the specified account code as the default code for all the business processes. Select the Active check box to set the specified account code as active. Click Submit.