You can create production orders:

• For which no purchase requisitions for externally processed operations and externally procured components are currently created
• For which the reservations for components are currently not taken into account in MRP

These order objects (operations, components) are not relevant to MRP, that is, they do not result in the creation of corresponding procurement elements (purchase requisitions planned orders).

You can specify that:

• Purchase requisitions and reservations for the order objects are activated at the point of release (order, operation), that is, purchase requisitions for externally processed operations and externally procured components are created and the reservations for components in MRP are taken into account. Before release, you can activate these purchase requisitions and reservations using a corresponding function.
• Purchase requisitions and reservations are not relevant to MRP and can only be activated using the appropriate function.
• Order objects are immediately relevant to MRP.

This function is set up using the key Reservation/Purc.req in the order type-dependent parameters.

When the order is created, the setting in the Res./Purc.req. key from the order type-dependent parameters is entered in the order header (key Res./Purc. req. tab page: Control). The order objects will then be processed according to these settings. The key also exists at component and operation level, and it describes the state of the object.

The key at order header level can be changed at a later stage. A change does not, however, have an effect on already existing order objects. In the case of newly added operations and components, the key in the order header is used.

When or how the activation of the order objects occurs depends on the characteristics of the Res./Purc.req. key. The key can have the following values:

• Not relevant to MRP

• Not relevant to MRP until release

• Immediately relevant to MRP

• All dependent objects (suboperations, components) will be activated when an operation is activated.
• When you have activated the purchase requisition or reservation, you cannot cancel this activation.
• When components are added or reassigned to a released operation, the components will also be activated.
• When planned orders are converted, the reservations for components that come from the bills of materials for MRP are always active. Routing data are dealt with during the conversion according to the setting in the order header key Reservation/Purc.req.
• At the point of release, the key in the order header is given the characteristic immediately.

A possible application of this function could be as follows:

1. You create a production order with an order type whereby the order objects are not activated (Not relevant to MRP until release).
2. You can now change the order without this affecting the MRP results.
3. You release the order. By doing so, all objects are automatically activated. From now on the objects are relevant to MRP.