Process After Code is usually used to perform the following:

1. To modify the data being returned, so that data not actually held on file, or held in a different shape on file, can be returned. This could be to default data as appropriate. Modifying data being returned should normally only be performed when Command is Get.

2. To provide instance or attribute level security, for example should this user see this instance but not others within this class, or should this user see some attributes but not others within this instance. Security checking should normally only be performed when Command is Get.

3. To update related data, that is dependant on the data that was just saved. Updating related data should normally only be performed when Command is Save or Load, and when the ErrorMessage parameter is blank or null.