When you change an event or process variable in a decision diagram or campaign, its assignments are cleared from downstream nodes. This change occurs when the diagram or campaign is closed and reopened in SAS^® Customer Intelligence Studio. There are some minor changes to variables in which this behavior might be unexpected:

• The display name is all that is changed.
• An identifier is added or changed.
• The type is changed from a scalar to a list of the same type.
• The value for the Required check box that is associated with the variable is changed.

When you reopen a diagram or campaign after such a change, you will see a dialog box with the following message:

The event request variables for the {0} node have changed since this diagram was last opened.

There is no workaround for this behavior other than to go through the diagram and reassign the values in downstream nodes.

Operating System and Release Information