Warning message appeared multiple time in the prompt

Summary:

Hello - I have created a fast formula with a straightforward code to prompt a warning message used for Global Absence Entry Validation. However, when the message is prompting in the UI, it appears multiple times. Is there a way to fix this?

Prompt:

Code Snippet:

ERROR_CODE = 'W'
ERROR_MESSAGE = 'Please be aware that upon taking this leave you will have a negative leave balance.'
VALID = 'N'
RETURN ERROR_CODE, ERROR_MESSAGE, VALID

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