How to Change a Restrictive Constraint Into a Warning Constraint

To change a restrictive constraint into a warning constraint:

1.	Define a warning message, and optionally, a message category.

See: "How to Define Your Own System Messages".

2.	Write the constraint as if it were a restrictive constraint, starting with a SELECT keyword.

Do NOT specify a constraint message: the component takes care of the message.

3.	Replace the SELECT keyword with:

INVOKE    RulesEngine.MessageLanguage
WITH
SELECT    'message-category'
,         'message-name'
,         'WARNING'
[ ,        'parameter-1', ... ]

where:

•message-category is the category that the message belongs to.

•message-name is the message name.

•parameter-1, parameter-2, ... are optional message parameters.

If you want to provide an information message, change 'WARNING' into 'INFORMATION'.

4.	Click the Check button to have your constraint checked.

5.	Save your changes.