Symptom
User expects some messages to Appear and Retain on the UI. Currently the messages flash on the UI and disappear Immediately.
Environment
SAP Cloud for customer.
Cause
In C4C, you can model events using SDK. Events can consist of multiple operations. The operations where a backend operation is modeled (example - BO action, Read/Write operations) will also fetch messages if any that are supposed to be shown on the UI. In the JSON round trip response, you see an event called finalize and you also see the messages fetched.
However, if there is a round trip after this that also does a backend operation, the previously fetched messages will not be shown on the UI. Instead, only the messages that are fetched with the latest round trip get displayed on the screen.
The end user might also experience a message flashing on the screen and then disappearing.
This is an expected behavior.
Resolution
To avoid this, the modeling of the event should be such that the messages are fetched with the last operation of the event.
Keywords
The messages flash on the UI and disappear, disappearing messages, SDK Modeling, Messages , KBA , AP-RC-UIF-FLX , Page Layout & Key User Configuration , Problem