Past dates in Material Ord.Reservation MD04

[former_member590612]

Hi Gurus,

I have a problem that I hope you can help mewith J

When we are running a process order for a long period (such as a month or more), we have some issues with the requirement dates of the components.

The requirement date is set to the operation start date, and it continues like that while the time goes and the material is used. For example:

An order that last 4 weeks with a requirement of 100Kg is split like:

• Week 1: 50kg
• Week 2: 50kg
• Week 3: 50kg
• Week 4: 50kg

This is fine, but imagine that we are now in Week 3 (so we have consumed 100kg). This is what the system register as left in reservation for the material:

• Week 1: 25kg (date two weeks in past)
• Week 2: 25kg (date one week in past)
• Week 3: 25kg
• Week 4: 25kg

Instead of:

• Week 3: 50kg (Current week)
• Week 4: 50kg (Next week)

To correct this, we have been using the Offset time inside the order for each component, but this leads to move the requirements to the future (such as Week 5 and Week 6, more than the End date of the process order).

Have you seen this behavior before and know how to avoid it?

It is such a problem for the purchasers of raw materials when MRP is saying that you need to buy it (and you are late), but you know that have the materials in stock for the present and future week.

Thank you in advance,

Eva

[Caetano]

Hello Eva

Are you assigning a distribution key to your components? You can do it in the Bill of Material.

Regards,

Caetano

[former_member590612]

Hi Caetano,

Yes, we are using distribution key GLEI for raw materials 🙂

Best regards,

Eva

[Caetano]

Hello Eva

The distribution takes place between the basic start date and basic finish date for the finished product of the order, and at component level between the earliest and latest requirement date. This distribution does not always correspond to the actual production dates (particularly in the process industry).

Using the BAdI MD_ADAPT_DISTRIBUTION, you can better adjust the start and end date of the distribution and the valid factory calendar to the actual production dates.

Regards,

Caetano

[former_member590612]

Thank you so much Caetano! 🙂

This might be the solution we need. I also read your entry in the blog:

https://blogs.sap.com/2013/08/12/badis-for-mrp/, and I think it is very informative and useful.

Have a nice weekend,

Eva

[former_member590612]

Hi again Caetano,

I was trying to implement the BAdi, but reading the available information and the example in SAP, this BAdi changes the req. date from the basic dates, to the production dates. But you can also do this through OPUZ.

Is there a way to change the start and end date to the days you need? Instead of basic or production dates.

I mean, the problem is that for monthly process orders, the requirements are in the past and not moving from the current date to the end date, and it doesn't matter if it is Basic or Schedule date.

Thank you 🙂

Eva