There is a validation of type Item is Numeric on the P1_SALARY item. When the page is submitted, this error message is displayed both as a…

Validation errors in APEX default to both inline (next to the item) and notification (top of page):

C . Setting Display Location to Inline in Notification: In the validation’s properties, changing "Display

Location" to "Inline in Notification" ensures the error appears only in the notification area,

suppressing inline display. This centralizes feedback for a cleaner UI.

A . Removing Associated Item: Breaks the validation’s link to P1_SALARY, stopping it entirely.

B . Value Required: Adds a separate check, unrelated to display location.

Pitfall: Test with non-numeric input (e.g., "abc") to confirm behavior.

Reference: Oracle APEX 23.2 Documentation - "Managing Validations" under Page Processing.