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Supply chain | Supply Chain Management, Commerce
Suggested Answer

BOM Circularity on product variant

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Posted on by 22
Hi,
 
Has anyone experienced issue with a production order of Variant A unable to generate a pegged supply production order of Variant B under the same item number due to BOM circularity?
Majority of our products are Product Masters. Product number 33494 has product variants 33494-A and 33494-B, where variant 33494-B is added in the BOM line of variant 33494-A.
Running the Circularity check on the BOM does not find an error. I have tried different parameter settings in the Inventory Management to trigger the error on the BOM check but the system could not find any error (which is a good thing). This should not give an error because the system treats each product variant as different "products" even if they are from the same main product number.
 
But when I create a production order of product variant A where product variant B is in the BOM line type as Pegged supply, the system gives me BOM circularity error. It does not give BOM circularity error if the BOM line type is Item.
Important to note that this has worked before and for whatever reason just suddenly stopped working.
 
I have the same question (0)
  • Suggested answer
    Venkat Profile Picture
    180 on at
    HI,
    This is how it is working for me.
    If the " Level of circularity " was set to "Line" and the "Circularity check strategy" was set to "Optimize for Low  complexity"  in the inventory and warehouse parameters, BOM circularity check will end up with an error, "Circularity references are not allowed". 
    Production order does not gets created.
    If the " Level of circularity " was set to "Line" and the "Circularity check strategy" was set to "Optimize for high  complexity"  in the inventory and warehouse parameters, BOM circularity check gets done without an error.  Production order gets created and can be estimated without and error. A sub production order gets created.
    Same is the case with If the " Level of circularity " was set to "BOM".
    Please check the parameters.

    Regards,
    Venkat
  • Laurens vd Tang Profile Picture
    4,758 Super User 2026 Season 1 on at
    Good day,
     
    Are product variants 33494-A and 33494-B separate item numbers?
     
    Best regards,
    Laurens van der Tang
  • Rolly R Profile Picture
    22 on at
    @Laurens vd Tang Yes, both variants are from the same Product Master number. Again, this worked before without issue but for whatever reason it's now throwing error on production orders.
  • Rolly R Profile Picture
    22 on at
    @Venkat I already tried those parameter settings combinations but it still does not work.
    Again, it should not throw an error because they are different variants. It used to work before but somehow decided to stop working all of a sudden.
  • Laurens vd Tang Profile Picture
    4,758 Super User 2026 Season 1 on at
    Hi Rolly,
     
    Can you maybe share a screenshot of the BOM line? Is the variant mentioned on the BOM line?
     
    Best regards,
    Laurens van der Tang
  • Rolly R Profile Picture
    22 on at
    @Laurens vd Tang Here are a few screenshots.
     
    These are the product variants under the same product master:
     
    And here is the BOM version for the variant 33404-9-0-3-1, where variant 33494-9-0-2-0 is added in the BOM line.
  • Venkat Profile Picture
    180 on at
    Hi,
     
    Can you verify if the "Configuration" was defined in the Header for the item  in the BOM versions?
    If configuration was not selected/defined as below, estimation of the production order will end with an error.
     
     
    Regards,
    Venkat
     
  • Rolly R Profile Picture
    22 on at
    @Venkat Yes, all the active product dimensions are defined in the BOM header. Kindly see the answer I posted to Laurens vd Tang with screenshots.
  • Laurens vd Tang Profile Picture
    4,758 Super User 2026 Season 1 on at
    Hi Rolly,
     
    Thanks for sharing the screenshot of the BOM line—that’s helpful!
     
    You mentioned that it worked before. Could you elaborate a bit? Is it no longer working after a version upgrade?
     
    Best regards,
    Laurens van der Tang

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