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Backward Scheduling is not working during ATP

kumararmugam
Explorer
0 Kudos
1,335

Hello

During ATP check the backward scheduling is not confirming the sales order on requested delivery date.

Ex:

There is enough inventory at location to cover the requirement.

Lets assume current date when order is being created as 9/11

If order is created with requested delivery date as 9/11 i.e. current date, system proposes confirmed delivery date 9/15 as below.

MAD = 9/11

PICK/PACK = 1 day = 9/12

LOAD = 1 day = 9/13

TRAN = 2 day = 9/15

So, the latest the order can be confirmed is by 9/15, So if I ask requested delivery date as 9/15 then it should be confirmed on that date. But the system is considering the MAD as 9/15 during backward scheduling and then adding lead time of 4 days in forward scheduling to confirm the order for 9/19.

If requested delivery date is changed to 9/14, then MAD is considered as 9/14 during backward scheduling and then add 4 days lead time in forward scheduling to proposed 9/18 as confirmed delivery date.

goods receiving hours at ship to location are 24/7 so no impact due to it.

We using GATP for transportation and shipment scheduling for sales order.

Regards

Kumar

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kumararmugam
Explorer
0 Kudos

Hello Brahmankar,

Thanks for response.!

Condition records are maintained. No shipping calendar maintained in APO side. Calendar on shipping point on ECC doesn't have any holidays and they work 24/7.

Enclosed Screen shots of schedule lines and scheduling overview.

rupesh_brahmankar
Active Contributor
0 Kudos

Hello,

Look like route scheduling is not working in gATP.

  • To determine the other duration (transport planning, picking, loading, unloading), you can use the condition technique. To do this you have to create a condition table for scheduling and an access for the scheduling
  • In SCM customizing (IMG - SPRO): -> Advanced Planner and Optimizer (APO) -> Global Available-to-Promise (Global ATP Check) -> Transportation and Shipment Scheduling -> Define Condition Table for Scheduling -> Maintain Access for Scheduling and Maintain Control for Scheduling

    Check that, delivery and transportation scheduling is activated in transaction OVLY in ECC for your sales order type

    Please refer SAP KBA 2221849 - Customizing and process flow of ERP SD scheduling

    Best Regards,

    R.Brahmankar