Inline validation provides error feedback in response to user’s data input in a Create or Edit form of a business object. The errors maybe critical in which case, the user should not be allowed to proceed until fixed or it maybe informative still allowing the user to complete editing.
The error should be placed under the related input field and must explain to the user clearly and concisely why the error occurred and how to correct the error.
Inline error in form sheet
The inline error can appear if the user has entered incorrect data. The message in the inline error banner should explain the error clearly with suggestions to correct the mistake. The inline error banner disappears once valid data is entered.