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Dynamics NAV - Production Order problem RRS feed

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    I have problem with production order. I made new work center (A) and made new routing with only one line (work center A).
    A assign this routing to item and I made released production order with this item source. When I start Refresh command, I get message: 'Error when calculating backward. Calendar is not available before date for work center A.'
    Sunday, July 14, 2013 1:42 PM

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    Then unmark this field and calculate Work Center Calendar again. This will solve your problems.
    This field tell to NAV that Work Center's availability is equal to the sum of the machine center capacities.
    Considering that, you don't use Machine Centers, there sum is zero.
    Sunday, July 14, 2013 1:52 PM

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    Maybe is not important, but what NAV version you use?
    Sunday, July 14, 2013 1:43 PM
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    Thanks on your fast answer. I use NAV 2009 R2.
    Sunday, July 14, 2013 1:44 PM
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    OK. Are you calculate Work Center Calendar? I think this is a problem.
    Sunday, July 14, 2013 1:45 PM
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    This can be solution, but I calculated at the same time when I created work center for current year.
    Sunday, July 14, 2013 1:47 PM
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    What is Quantity on Production Order? What is Setup Time and Run Time on this item Routing? Do you set any other time on routing? Maybe, this quantites and times are problem. Try to calculate quantity and time by hand.
    Sunday, July 14, 2013 1:47 PM
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    Quantity is 20; Setum time is 45 minutes and Run time is 22 minutes. This is small quantity and this is first time I use this WC.
    Sunday, July 14, 2013 1:48 PM
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    However, look at Work Center Calendar and tell me what values are in this Work Center line.
    • Proposed as answer by Nikola Prokos Sunday, September 15, 2013 9:56 PM
    Sunday, July 14, 2013 1:48 PM
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    There are only zeros. I calculate this WC again and again, and everytime get zeros.
    Sunday, July 14, 2013 1:49 PM
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    Do you use Machine Centers? If no, tell me what value is in Consolidated Calendar field.
    Sunday, July 14, 2013 1:50 PM
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    No, I don't use machine centers and yes, this field is marked.
    Sunday, July 14, 2013 1:51 PM
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    Then unmark this field and calculate Work Center Calendar again. This will solve your problems.
    This field tell to NAV that Work Center's availability is equal to the sum of the machine center capacities.
    Considering that, you don't use Machine Centers, there sum is zero.
    Sunday, July 14, 2013 1:52 PM
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    Hello same problem i am facing can you please me on this issue.

    while doing refresh production order i am getting following error.i am using work centers.

    "Error when calculating backward. Calendar is not available before 01/01/14 for Work Center 1005"

    Monday, December 15, 2014 7:53 AM
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    1. Calculate the work center calendar again in Work center card window
    2. First, Choose Calendar in the ribbon of work center card.
    3. In the work center calendar choose show matrix, It shows your work center line.
    4. Click the Actions and Recalculate
    5. Choose the work center and no in the respective field in recalculate calendar and click ok. 
    6. Now in the same window click Calculate. Enter your work center no and click ok
    7. Once you completed these work, the machine center line is automatically updated with respective values.
    8. Now refresh production order it will work.
    Thursday, December 7, 2017 8:23 AM