ATP is suggesting a Promise Date based on Supply (Planned Order w/compression days - ASCP / ECC) tha

For a due date Sales Order, the ATP is suggesting a Promise date based on a Planned Order supply  that has compression days, In reality that Planned Order is not supply that could be available on time for that ATP Promise Date.

How can we ensure that ATP does not consider Supply coming from Planned Orders with due date (from ASCP Plan ECC)?

Can this be limited by ATP Rule?

Thanks in advance!