Difference / Application of Strategy Group 40 & 70 ?

Dear Experts,

<b>Would like to clarify the difference between Strategy Group 40 & 70 ?</b>

<u><b>Currently :</b></u>

<b>(1)</b> All product not required Sales, are defaulted Strategy Group 70 (Planning at assembly level)

<b>(2a)</b> Subsequently, for any product / spares that require sales, we will manually change Strategy Group to 40 (Planning with final assembly)

<i><b>AND</b></i>

<b>(2b)</b> If forecast (represented by Independent Demand) is required, further setup is required for auto consumption of Independent Demand by Sales Order :

- Consumption mode = 2 (backward/forward consumption)

- Foward & backward consumption period = 999

<b>What would be the effect if we default all product to be Strategy Group 40</b> (as any product has potential to be spare parts), and if Independent Demand is require then we will apply (2b) setting ?

<b>Is there a better way to this ?</b>

<b>THANK YOU FOR YOUR GUIDANCE !</b>