MRP - manage time before production start

[Former Member]

Hi gurus,

For my production, I have an external service provider. The issue is that the service provider has other customers. When I send an order, I have to wait about 3 weeks until the production really start.

I would like to know how I can manage this time in SAP.

I would like MRP to create purchase requisitions (for example) 3 weeks after the creation of the order for the service provider, so when the production really start.

Thank you in advance,

[Caetano · Accepted solution]

Hi Ed

Are you using an externally processed operation or subctracting through the special procurement 30?

If you are using an externally processed operation, on the customizing transaction OPL8 you can define if the purchase requisitions will be created immediately (when the order is created), from release or never (they should be manually created).

BR

Caetano

[Former Member · Accepted solution]

Thank you for your quick reply.

Maybe I was not clear enough.

I want to find out how could be possible than the starting date of a planned order could mandatory integrated a fix timeline (ie 3 weeks). If I integrate it in the inhouse production time, the requirements will not accordingly be posponed to this time (but I need the components only in 3 weeks, not before).

Is there another possibility than manually postpone the planned order if this one has a starting date in between?

[Caetano · Accepted solution]

Hello

If I understood your issue correctly, you don't want to have newly created planned orders on the next three weeks, that's right?

Did you already tested a planning time fence with a proper MRP type? Depending on the MRP type firming type defined on customizing (transaction OMDQ) you can have newly created planned orders created only outside of the time fence.

You can try with MRP type P1 and a time fence of three weeks.

BR

Caetano

[Former Member · Accepted solution]

Thanks, it works.

[Former Member]

Hi Ed,

you can use purchase value key in order to manage buffer lead time for the purchasing activity.

As alternative you can also include 3 week in planned delivery time in the inforecord of the specific vendor.

As last possibility you can use  BAdI -->

- MD_ADD_ELEMENTS

- BAdI MD_PURREQ_CHANGE

for change purchase requisition data with our rules, according lead time of the vendor or others logic.

Let me know if i have been useful for you

Daniele