Show warning (NOT error) message to user from plugin

Question

In the CRM solution I am working on, there is a case where the user needs to be shown a warning message based on plugin execution results after submitting a particular form. The operation should still complete successfully, so throwing an exception from the plugin is not a good solution.

From searching around, there does not seem to be a straight-forward way to do this.

Is the only option to save the warning message contents to a custom field on some entity and use a javascript function on the form to determine when to display it to the user?

Answer 1

1. Implement a Custom Workflow Activity with the business logic your plugin is currently doing.

2. Create and activate an action that uses that Workflow Activity.

3. Code a JS function associated to the form's OnSave event that calls this action by doing a WebApi request. Lastly, after the action is processed you can call the out of the box setFormNotification Client API to create a custom warning message at the top of the form.

You will end up with a nice custom message like this: