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One day difference between CO09 in APO and MD04


I need some help from you experts.

We have ATP running in APO for the past 3-4 months. Our users go to both MD04 in ECC and CO09(which now runs in APO due to gATP). Recently we observed that with RLT(which is Checking Horizon in APO) we are seeing a ONE day difference in the dates on when the Checking Horizon ended.

MD04 always shows the correct end date but CO09 running in APO always shows end date which is always ONE day less. First we thought it was the 1 DAY GR time which was causing the issue and changed the GR to 2 DAYS and 4 DAYS. That had not effect. The APO side CO09 was always showing a date which consistently 1 DAY less than MD04 in ECC.

Would appreciate any guidance....


Subash Nanjangud

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2 Answers

  • Best Answer
    Oct 24, 2015 at 01:51 PM

    Hi, follow the link to get insight about calculation of RLT leadtime

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    • Tthanks Michael.

      I will check it out. This note explains the logic very clearly which I think we have got it. But it is still a great knowledge note. Our issue is MD04 in ECC showing the cor react date and CO09 in APO for the same material ALWAYS showing ONE DAY LESS. Our CO09 branches to APO as we have CTP in 8 plants. The non CTP Plant materials for whom both MD04 and CO09 is executed in ECC the dates are perfect. Some users use MD04, some CO09 and most CSRs use both. So they are confused with different dates coming out of the system and their worry is some 'promissable' dates could be missed. If you need I can post screenshots on Monday.

      Thanks again,


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    Former Member
    Oct 26, 2015 at 02:28 PM

    Hi Subhash,

    Looks like the issue is due to the timezone difference in ECC and APO.

    Most of the cases the timezone which is used in APO is UTC Timestamp, you will have to check the timezone mainatined in ECC and whether ATP Buckets are configured correctly.

    The order time is getting scheduled backwards to UTC due to which it is falling 1 DAY less.

    This can be checked by adding the local time zone difference with the UTCtime to the sales order schedule line shipping data.

    For eg: if the you are in UTC+5:30 timezone, maintain the shedule line shipping data time zones as 05:30:00 instead of 00:00:00.

    Let me know incase you are not able to resolve with this.


    Ajith Kamal TN

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    • Thank you Ajith.

      We will try it in the next couple of weeks and I will let you know the results. We are configuring CPS and seem to be having a similar issue with seconds and minutes.