How Planned order is calculated

How Planned order is calculated for forecast and demand in multiple weeks? We have MPS planning. Planned order pegging indicates it is for forecast and sales orders between 25 Jun to 16 July. There are other planned orders for the same SKU and org for other dates. Question is, what governs grouping of demand/forecast to suggest a planned order??

Question is, what governs

Question is, what governs grouping of demand/forecast to suggest a planned order?? Sorry didnt get your question . can you please rephrase it? You can use demand class to group differnt sources of demand (customer, region etc)