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ATP using POs and RLT

Former Member
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I would like to have the ATP check to propose availability date based on replenishment lead time AND purchase order dates. So, if the RLT is 10 days and the PO date is 15 days away, use the PO date instead of the RLT. It appears that both dates cannot be used during the ATP check. If the RLT is used, the system will propose that all product will be available based on the RLT. The PO date is not taken into consideration if RLT is used. Is this accurate? If so, then what would be the advantage of using the POs (inward movement) if you are using RLT?

Thanks!

Accepted Solutions (1)

Accepted Solutions (1)

former_member184555
Active Contributor
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Hi

System behaviour is perfectly correct. If the PO always takes 15 days time for delivery, then change the RLT for this material as 15 days instead of 10 days.

Thanks,

Ravi

Former Member
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Thanks

Answers (2)

Answers (2)

former_member184555
Active Contributor
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Hi

RLT is the time taken to Produce (internal production) or Procure (external procurement) a material. It applies to both the scenarios.

While running the availabilty check for the sales order the system will not consider this new PO since it was not existing at that time and was created only after the creation of the sales order. If you rerun the availability check for the same sales order, then the system will consider this PO also for determining the confirmed quantities and delivery dates in the schedule lines of that sales order.

Thanks,

Ravi

Former Member
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I understand that the PO date would not be checked in the sales order if it had not been created. The problem is it is not being checked in rescheduling either even though POs have been created. The BO and Sales Order checking groups have POs checked. However, only the RLT time is being applied to the sales orders and the backorders. Ideas on what else we should look at?

former_member217082
Active Contributor
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Hi barbara

You can have the ATP check to propose the delivery date based on RLT or Purchase order dates .Because RLT is used to tell to the customer that how much lead time the material it will take come to the storage location and when it can be delivered . But PO's are used to tell that so many days it will take to come to our storage location from outside. So if the material is externally procured then system will check and then it will consider PO days and then it will give the delivery date. So if the material is procured externally then the PO is 15days then the delviery date will be 16/01/2009. and if it is procured internally then system will check the RLT as it is 10days then it will give the delivery date as 12/01/2009.

Regards

Srinath

Former Member
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Just to make sure I am clear about what you are saying. Are you saying that RLT is more focused for internal procurement (production orders, etc.) and PO lead time is for external procurement? A scenario that we have is: An order is placed for 10 of an item. Five are on hand. The RLT proposes an availability date of 10 days for the balance that is not available for today. A PO is then created and the expected receipt time is 15 days. The availability date needs to be changed in the sales order when rescheduling runs to pick up the expected PO receipt date, not the RLT. However, when using RLT, the PO date is not being taken into account. If it is possible to do so, can you direct me on how to make this happen?