Rounding Value, Minimum Lot Size and Maximum Lot Size Parameters in combination

Dear all,

it's not yet clear to me what the heuristic does if I use Rounding Value, Minimum Lot Size and Maximum Lot Size Parameters in combination. What is the specified sequence of the parameters? Example: Minimum Lot Size = 250; Rounding Value = 50; Minimum Lot Size = 200; Required net quantity = 556. My current understanding is that - in a first step - the heuristic is splitting the net quantity in three "pieces" (250; 250; 56). Am I right? What is done next? Does the heuristic use the minimum lot size parameter next? That is, 56 is rounded up to 200? Or does the heuristic use the rounding value next? That ist, 56 is rounded up to 100? If the latter, then minimum lot size parameter is used next? Thus, 100 is rounded up to 200? I described by question clear enough. I checked several books and SAP help but didn't find an answer that covers my question completely. Many thanks for your support. Mathias