How To Fix CNV_DMC_SIN171 - Serial number only allows quantity 1 for material '&1' and serialno '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 171

• Message text: Serial number only allows quantity 1 for material '&1' and serialno '&2'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_SIN171 - Serial number only allows quantity 1 for material '&1' and serialno '&2' ?

  The SAP error message CNV_DMC_SIN171 indicates that there is an issue with the handling of serial numbers for a specific material during a data migration or conversion process. This error typically arises when you are trying to process a material that is managed with serial numbers, but the system is expecting a quantity of 1 for that serial number.
  Cause:
  
  Serial Number Management: The material in question is set up in SAP to require serial number management. This means that each unit of the material must be tracked individually by its serial number.
  Quantity Mismatch: The error occurs when an attempt is made to process a quantity greater than 1 for a material that is configured to allow only one unit per serial number. For example, if you are trying to post a quantity of 5 for a material that requires serial numbers, the system will throw this error because it cannot associate multiple units with a single serial number.
  
  Solution:
  
  Check Material Configuration: Verify the configuration of the material in question. Ensure that it is set up correctly for serial number management. You can do this by checking the material master data in the SAP system.
  Adjust Quantity: If you are trying to process a quantity greater than 1, you need to either:
  
  Change the quantity to 1 and ensure that each serial number is processed individually.
  If you need to handle multiple units, consider using a different material that does not require serial number management or adjust the configuration of the current material if appropriate.
  
  
  Data Migration Process: If this error occurs during a data migration process (e.g., using the SAP Data Migration Cockpit), ensure that the data being migrated adheres to the serial number requirements. Each serial number should correspond to a quantity of 1.
  Review Migration Files: If you are using migration files (like CSV or Excel), check the entries for the material and serial numbers to ensure that they are correctly formatted and that each serial number is associated with a quantity of 1.
  
  Related Information:
  
  Serial Number Management: In SAP, serial number management is used for materials that require tracking of individual items, such as high-value items or items that require warranty tracking.
  Material Master Data: You can view and edit material master data using transaction codes like MM02 (Change Material) or MM03 (Display Material).
  SAP Notes and Documentation: Check SAP Notes for any specific patches or updates related to this error message. SAP's help documentation may also provide additional insights into handling serial number issues.
  
  By following these steps, you should be able to resolve the CNV_DMC_SIN171 error and ensure that your material and serial number processing is correctly configured.