PPDS doubt 1

[Former Member]

Hi,

My client is a Make to order heavy equipment manufacturer with BOMs running almost 30 levels deep. In this case we use a combination of phantoms and non phantoms to reduce the number of production orders. We are now planning to implement PPDS. Does it matter how deep and big the BOM is ? I mean if the DS heuristics or the PPDS optimizer is used will it cause any complications such as performance issues or anything else? What would be the best practice to take a planning run for such deep BOMs ?

Thanks

[Former Member · Accepted solution]

HI,

Yes there could be performance issues, You should split the jobs with different product groups. Moreover it is not recommended to take all the components into APO for planning. You should consider only critical materials for planning in APO.

Looking at your scenario there will complications in planning if you consider 30 level BOM.

[frank_horlacher]

Be careful with the phantoms!

quote from note 1406424:

Planning with Phantoms: When using the PDS it is not allowed to use the

same phantom several times in the BOM of a finished product if a

component of this phantom is assigned to different operations in the

routing.

also read the other restrictions carefully for your project.

[Former Member]

Hi GS,

In order to avoid the complexity, you can include only the critical spares

or the header level items into APO for planning purpose. This will

avoid time spent during scheduling/rescheduling of all operations and to

avoid performance issues

Regards

R. Senthil Mareeswaran.