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Dynamics 365 Community / Forums / Supply chain | Supply Chain Management, Commerce / Product Specific Unit ...
Supply chain | Supply Chain Management, Commerce
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Product Specific Unit Conversions, Unit sequence group and Resulting Error on Load Building

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Posted on by KEYSTONE 12
Does anyone have any insight, or can you direct me to resources that substantiate the statement that having more product specific unit conversions defined on a product than are required by the unit sequence group is the root cause of a missing conversion error on load building?  I have the following scenario that I'm not able to get a reasonable understanding of:
 
Box is not on the order nor is it part of the unit sequence.  One person I'm speaking with indicated that you can't have more conversions defined if they are not part of the unit sequence or it will error out.  This doesn't make sense to me, as then I would expect an error because we don't have a Box to Pallet conversion either, and that doesn't have an error when someone said they added a 1 MC : 10 BOX conversion.  I'm told that the solution is to go back and remove all non-unit sequence group conversions to prevent this.  Is this correct, is there any Microsoft documentation on this?
 
 
released product purchase unit: PK
released product sell unit: PK
released product inventory unit: PK
unit sequence group ID:  PK-MC-PL
 
 
 
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  • Suggested answer
    Kevin Xia Profile Picture
    Kevin Xia Microsoft Employee on at
    Product Specific Unit Conversions, Unit sequence group and Resulting Error on Load Building
    Hi,
    Judging from the error type of the system, this is an error message that blocks the process, not a warning message, so this is the root cause of the build error. As you said, after adding the MC to Box conversion, the error will be eliminated, the process continues. The simplest solution to eliminate this problem is to add a MC to Box conversion based on the error message. This is the official document for unit conversion, you can refer to it: Manage units of measure - Supply Chain Management | Dynamics 365 | Microsoft Learn.
    Best regards,
    Kevin
  • KEYSTONE Profile Picture
    KEYSTONE 12 on at
    Product Specific Unit Conversions, Unit sequence group and Resulting Error on Load Building
    Thanks for the feedback Kevin. 
     
    What I am looking to still understand is why the system is looking for a box to carton conversion when it is not a requirement of the unit sequence or defined on the master item record.  In this case the additional PK to Box conversion was legacy data loaded as a reference for a non-picking function.  So I guess I'm looking for something concrete to confirm that the logic in D365 is using not only the unit sequence group definition, but the availability of additional conversions to drive picking/load build, either as part of containerization, load-build, picking directives etc. 
     
    While there is documentation to support having at least the conversions specified in the unit sequence groups, I've found nothing in the Microsoft documentation to indicate it's a system requirement to have only the required unit conversions defined on the sequence group and no more. 
     
    My instinct is telling me, when the system is asking for an unnecessary and undefined conversion, I must either have setup somewhere to make it think a Box to carton is necessary, or it's a design issue with unit conversions in how it does the math.  In theory, with the logic already provided in the product unit conversion, the system should have been able to derive how many Boxes are in a MC given I've already told it PK : MC and PK : BOX, but it doesn't seem D365 is capable of this reference either.

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