|Specifies the On Error Messages for this parameter. You can type multiple messages using the ‘;’ delimiter and reference any context parameter using the '&' character.
Here, the "Lighting Claim" Flow includes a User input called "UserIdentification", whose purpose is to ask the user to enter his name or identification.
If the information entered by the user isn't valid, the message specified in the On Error Messages property is displayed.
In this case, a contextual parameter called &GXUserinput is used to reproduce the user input.
This property is available since GeneXus 16 (Tero).
Objects: Conversational Flows