When you start working with acquiring a part by means of DOP, only the DOP header is created, which contains the basic information about the demand. You must then generate the DOP structure of the DOP header.
A DOP structure is a logical hierarchy of orders that reflects the actual product structure of the parent DOP part and the component DOP parts. There are three ways you can create a DOP structure; use an existing product structure, use a previous DOP structure, or enter a new structure manually. When you create a DOP structure, any intermediate steps like parts with planning method K, Blow-Through, and P, Phantom parts, in the structure are deleted.
At this time, DOP structures do not handle byproducts. Byproducts are those parts where the quantity per assembly is less than 0 (zero) and identify parts received as a result of manufacturing. But DOP Structures can handle expense parts. Expense parts are those parts where the quantity per assembly is equal to 0 (zero) as either the cost or the quantity is insignificant.
When creating a DOP structure using the standard BOM, you can specify either DOP Parts, thereby limiting the scope to the DOP parts in the selected part structure, or Full Level, allowing all components to be the scope. Regardless of how a DOP structure is created, it can easily be maintained; for example, you can add a new DOP order or structure branch and modify, move, or delete a defined DOP order or structure branch.
All project specific DOP headers and DOP Orders will be tagged with Project ID and Activity Sequence.
The DOP structure contains netting and requirement information for individual DOP orders to be used when netting is carried out.
When you have created a DOP structure, you can release all DOP orders on all levels in the structure. You can also release each DOP order individually or by a DOP branch, as well as specify whether or not you want to release DOP orders automatically. Releasing a DOP order means generating pegged supply such as shop orders or purchase requisitions for all DOP components if the demand has not been met by netting.
When releasing pegged project specific DOP Orders, the system will generate project specific Shop Orders or Purchase Requisitions/Purchase Orders dependent on the part type. These orders will be received into project inventory.
Before any pegged orders are created for the DOP orders in the structure, the DOP header status is set to Unreleased. As long as the DOP structure has this status, you can change it as much as you desire. When pegged orders are created, the status changes to Released, and you cannot make major changes in the structure.
If you change the quantity or date needed on a DOP order, this information can be propagated downwards or upwards through the whole structure.