I need to display multiple line messages error message when user updates a field Asset code on case record in lightning environment.

I tried with trigger.addError('Error line 1 <br/>' + 'Error line2', false) in apex class. It works in classic but html tags are not supported in Lightning.

Is there any way to display message/toast to display error message only when Asset code gets changed on case record detail page .

  • Did you try new line character \n? – Anita Bhanarkar Apr 2 '19 at 8:03
  • It doesn't work since `\n' is a html tag which is not supported in lightning – devforce Apr 2 '19 at 8:08

Are you using a custom component or is it a standard lightning page ? If custom component, you could send the error message as a map and render it using showToast event / ui:message component.

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  • It's a standard lightning page, not a custom lightning component. – devforce Apr 3 '19 at 11:26

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