When using Validate-Record event trigger in Personalizations, Message Repeats Mulitple Times in Item

Hi All,

I have created a form personalization on Master Items form (INVIDITM). This personalization is created for checking the item category and to display message.

And this personalization is written on Main Block MTL_SYSTEM_ITEMS. When ever update occur in this form, the message pop ups and displays the message. But the message repeats multiple times.

Please let me know how to display the message only once using WHEN-VALIDATE-RECORD trigger.

Thanks & Regards,

Kishor M.