"Use Lot Size Setting From Heuristics" not flag / not activated in "/SAPAPO/RRP3"

How to default the "Use Lot Size Setting From Heuristics" flag in /SAPAPO/RRP3 after you have manually started the product heuristic.”

Required data for PPDS setup has been configured. In material master 'Advance planning' and product Heuristic assigned (SAP_PP_Q001).

Product heuristic “SAP_PP_002” is also not useful to activate / flag the “Use lot size setting from heuristic”

Using heuristic we maintain quota but this activity is also not useful to activate / flag the “Use lot size setting from heuristic”.