Need to Stop the Element Entry using one of the Input Value(Date Type)

Summary:

We have requirement to Stop the Element Entry using one of the Input Value(Date Type) of the Elements. How to achieve the Stop Entry Date in the Fast Formula and which Return Variable we need to use for passing the End-date Value.
We know that STOP_ENTRY = 'Y' will stop the entry; however, which Return Variable will capture the End date Value.

Regards.

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