Creating a Rule Expression 
In the Object Manager panel, under the Detail section, choose the Assigned Objects tab.
In the Assigned Objects tab page that appears, choose Expression object from the Type field and choose Create Object.
In the Object Creation dialog box that appears, enter the following data:
Name
Short Text
Text
Choose Rule from the Type field and choose Create & Navigate to Object.
The newly created rule opens in the Object Manager panel.
Note
If you choose Create button, the created rule object appears under the Assigned Objects tab.
Assign a condition to the rule.
You can assign a new expression or an existing expression as a condition.
In the Detail section,
Create a New Expression
Choose
(Graphical Access) next to No expression assigned.
In the context menu, choose Create Expression....
In the Object Creation dialog box that appears, create the expression.
More information: Creating Expressions
Select an Existing Expression
Choose
(Graphical Access) next to No expression assigned.
In the context menu, choose .
In the Object Query dialog that appears, select the data object and choose Select.
Note
The condition should be an a context data object or a nested expression whose value or result can be converted into a Boolean type.
Assign actions to the rule.
Depending on the result of the condition, a true action or a false action is processed. If the condition is satisfied, a true action is processed.
Assign True Action
You can either choose an existing action or create a new action.
Select an Existing Action
Choose
(Graphical Access) next to then perform No action assigned.
In the context menu, choose Select True Action....
In the Object Query dialog that appears, select the action and choose Select.
Create a New Action
Choose
(Graphical Access) next to then perform No action assigned.
In the context menu, choose Create True Action...
In the Object Creation dialog box that appears, create the action.
More information: Creating an Action
Assign False Action
Select an Existing Action
Choose
(Graphical Access) next to Otherwise perform No action assigned.
In the context menu, choose Select False Action....
In the Object Query dialog that appears, select the action and choose Select.
Create a New Action
Choose
(Graphical Access) next to Otherwise perform No action assigned.
In the context menu, Create False Action....
In the Object Creation dialog box that appears, create the action.
More information: Creating an Action
Save the rule.