Control exceptions and provide a way out
When you design any task or user journey, abnormal states and user journeys are often overlooked.These are situations where users become dissatisfied and need help. Therefore, special attention must be given to these exceptions. When an exception occurs, users must be given necessary prompts and be offered solutions. You must provide help for users to relieve their dissatisfaction. Avoid the event of an exception where users may stay on a interface without knowing what to do.
Lightweight prompt error
Prompt the error in the operation area for users if they input error information in the form.
When global exception states such as network problems and server exceptions occur, you can use global exception prompts and provide corresponding processing buttons.
When an exception occurs in a block of the page, you can use local exception to give users feedback and provide corresponding processing buttons.