Delivery date in ATP Simulation mode(APO)

[Former Member]

Hi Gurus,

When I execute ATP Simulation for an product location in APO against Lead time, delivery date is an hour behind.

Location Time zone: CET

We are using Scheduling with Condition Technique.

When I run the same for sales order, there is no issue.

Suggest me if I have missed anything.

Thanks,

Nihar

[Parth_Soneji · Accepted solution]

Hi Nihar

I am not sure if I understood your question correctly. Do you mean MBDAT when you say delivery date is an hour behind in the ATP simulation (/SAPAPO/AC04) as compared to online ATP check in a SO? In that case, you may want to check the DST indicator and Bucket start time for the relevant ATP group in APO. I think we had a similar issue and it was because of the winter time. You may have to shift the start of the bucket to 01:00:00 from 00:00:00 for the winter time issue.

Additionally, what are the ATP bucket limits? Provide us with the ATP bucket settings to have a clearer picture.

Parth Soneji

[Former Member · Accepted solution]

Hi Parth,

Let me elaborate in detail.

Location is in CET Time Zone

PICK/PACK - 1 day

TRAN - 3 day

Lead time: 4 days

End of Checking Horizon: 28.01.2014 00:00

Material Available Date: 28.01.2014 00:00:00

Delivery date: 31.01.2014 23:00:00

Shipping Calendar is maintained in Location Master & End of Checking Horizon Calendar is maintained in Location Product Master which are same with CET time zone.

Global settings:

Issue Limit: 01:00:00

Shift Receipts: 24:00:00

Local Time : selected.

Number of buckets per day: 1

Distribution Key: Selected

Bucket TS: No restrictions.

Thanks,

Nihar

[Former Member · Accepted solution]

Hi Parth,

What I have observed in the system with the data as mentioned above.

If Location is in UTC+1 time zone:

End of Checking Horizon - 28.01.2014 00:00

Material Available Date - 28.01.2014 00:00:00

Delivery date - 31.01.2014 23:00:00

If Location is in UTC+3 Time zone:

End of Checking Horizon - 28.01.2014 01:00

Material Available Date - 28.01.2014 01:00:00

Delivery date - 31.01.2014 22:00:00

Thanks,

Nihar

[Parth_Soneji · Accepted solution]

Hi Nihar

True, I also checked this in my system and I see the same behavior, so not an issue specific to your scenario. Basically, the system does all the scheduling in UTC timezone. As your location is 1 hour ahead of UTC (CET), it is giving this kind of result in ATP simulation (23:00:00). My plant is also in CET timezone and hence similar results.

The scheduling may also depend on the system timezone. We have a system which is in US EST timezone and location in CET timezone. ATP simulation in this case gives 18:00:00 as the timestamp as it is 6 hours behind.

Thanks,

Parth Soneji

[Former Member · Accepted solution]

Hi Parth,

Thanks for the details.

But based on my knowledge, if my system is in CET time zone & location is in CET time zone the delivery date should be according to the time zone specified by the location right?

I understand that in APO ATP simulation UTC time zone is taken into consideration!

Thanks,

Nihar

[Former Member · Accepted solution]

Nihar,

Delivery date is typically displayed in the time zone of the destination location.  Are you saying that the time zone of the destination location is also CET?

Best Regards,

DB49

[Former Member · Accepted solution]

Dogboy49,

Thank you, I missed destination location value while creating a simulation!

Thanks,

Nihar