How to Add Field Validation Message MS Access

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To add a validation message for a field in a table:

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1. Right-click the table in the navigation pane and select 'Design View'.
2. Click on the field where you want to add a validation message.
3. In the 'Field Properties' pane, locate the 'Validation Rule' property.
4. Enter a validation rule and click 'OK'.
5. In the 'Validation Text' property, type a message to display when the rule is violated.
6. Save the changes by clicking the save icon.