Custom Message (ModelBuilder)—ArcGIS Pro

Summary

Adds custom error, warning, or informative messages to a model's messages to enhance the context of a model when run.

This tool is only available from ModelBuilder for use in models. The tool is not available from the Geoprocessing pane or from Python.
This tool supports customized messages by using the Custom Message option for the Message Type parameter.
Alternatively, you can use any of the standard Esri error or warning messages using the Message Code option for the Message Type parameter. To use a standard error or warning message, you must know the six-digit code. In the offline help system, the ID codes are in the Geoprocessing Tools help. In both the online help system and offline help system, you can search for a code using the full six-digit ID including any leading zeros. Once you identify an appropriate ID, make note of any additional information that must be included in the message, denoted as <value> in the message.
For the Message Codes parameter, values can be provided to be substituted into a message. Messages that support substitution are denoted with <value> in the documentation.
For the Message Codes parameter, an Additional Message value can be incorporated with a Message Code value to improve the context of the message.

Label	Explanation	Data Type
Message Type	Specifies whether custom messages or standard Esri messages will be used. Message Code— Standard Esri messages accessed by the message IDs will be used. Custom Message—Custom messages will be used.	String
Message Codes (Optional)	Esri standard messages will be added when the model is run. This parameter is active when the Message Type parameter is set to Message Code. Message Severity—Specifies the message severity that will be used. Informative—The message will be an informative message. Warning—The message will be a warning message. Error—The message will be an error message. Message Code—An Esri standard six-digit geoprocessing message code. Code Argument 1—The first value that will be substituted into the message. Code Argument 2—The second value that will be substituted into the message. Custom Message—An additional message for context that will be added to the model when run.	Value Table
Custom Messages (Optional)	Custom messages will be added when the model is run. This parameter is active when the Message Type parameter is set to Custom Message. Message Severity—Specifies the message severity that will be used. Informative—The message will be an informative message. Warning—The message will be a warning message. Error—The message will be an error message. Custom Message—The message string.	Value Table

Label	Explanation	Data Type
Output Messages	The error, warning, and informative messages.	String

This tool does not use any geoprocessing environments.