Quick summary
Adding a field validation message in MS Access lets you define a validation rule and display a custom error message whenever a user enters data that violates that rule. This keeps your database data clean and guides users toward correct input without manual intervention.
Steps
- Right-click the table in the navigation pane and select Design View.
- Click on the field where you want to add a validation message.
- In the Field Properties pane, locate the Validation Rule property.
- Enter a validation rule and click OK.
- In the Validation Text property, type a message to display when the rule is violated.
- Save the changes by clicking the save icon.
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