When using the apps, the end user may notice the effects
of customization:
A customization has occurred and failed: The customization environment
built by the administrator was not reliable. The following message
appears:
The customization of your last operation failed due to a bad environment. Contact your administrator
A validation operation has concluded that an operation cannot
be performed. In this context, the message sent back to the end user
depends on the app responsible for the opening. But it is possible to build one element of the explanation message in the rule.