MRP-relevant change

[Former Member]

Hello Profs

documentation states:-

"The system automatically indicates materials that have undergone a

MRP-relevant change (such as the creation of a purchase order) in the

planning file,"

My question is, how does a creation of a P.O ,becomes a MRP relevant change ?

I mean , as far as I can see it does not change

MRP 1 {lot size, reorder point,mrp controller mrp type etc, parameters}

MRP2 {gr processing time, planned del time,procurement type etc. parameters}

and same for MRP 3 & 4.

so I need to know where is this 'MRP-relevant change' while creating a P.O.

Thanks

[Former Member · Accepted solution]

Based on the checking rule you define in OPJJ and

Net Change Planning (NETCH)

In net change planning only those materials are planned for which the net change planning indicator in the planning file has been set as a planning file entry. The system usually sets the indicator automatically as soon as a change is made to the material that is relevant to MRP.

The following changes cause an entry in the planning file to be made:

Changes to stock, if these change the stock/requirements situation of the material

Creation of purchase requisitions, purchase orders, planned orders, sales requirements, forecast requirements, dependent requirements or reservations

Changing to fields that are relevant to the planning run for these receipts and issues or in the material master

Deleting receipt or issue quantities

If you have changed the settings of an MRP type, a lot-sizing procedure or a purchasing department processing time in Customizing, the materials that are affected by these changes thus have no planning file entry and are not included automatically in the net change planning. To enable the changes made to take effect, you choose regenerative planning in the initial screen of the planning run or make an entry manually in the planning file.

[Former Member · Accepted solution]

so what I gather is, a P.O creation will per default put a change in the planning file. This is the way the system's been designed,right ?