Is it possible to get the value of the tooltip in "When is the employee start date" on the Offer pag

Summary:

In Create and Edit Job Offer, there is a tooltip on the "When is the employee start date?" on When and Why section to "Enter a date on or after MMDDYYYY".

In creating an object defaulting rule, Is it possible to get the date value of the tooltip ("Enter a date on or after MMDDYYYY") in "When is the employee start date" on the Offer page?

How can we identify how the tooltip is being calculated/computed?

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