Guidelines for Configuring Backward Navigation
If you configure Siebel CRM to use backward navigation, then it is recommended that you adhere the following guidelines:
Make sure that any Workflow Process steps that Siebel CRM repeats as a result of using backward navigation do not result in Siebel CRM performing duplicative actions on data.
Note that backward navigation does not undo changes that the Workflow Process makes. It only modifies the current step counter to reference a previous step.