Message type: E = Error
Message class:  UPO_MIG - Message Class for PRA->UOM Migration 
Message number: 389
Message text: PPN found for master data
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.
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The SAP error message UPO_MIG389 typically indicates that there is an issue related to the Product Master Data (PPN - Product Portfolio Number) during a migration or data upload process. This error can occur in various scenarios, such as during the migration of data from legacy systems to SAP or when trying to upload new master data.
Cause: The error message UPO_MIG389 usually arises due to one or more of the following reasons: Missing or Incorrect Data: The PPN might be missing or incorrectly formatted in the data being uploaded. Data Consistency Issues: There may be inconsistencies in the data, such as duplicate entries or references to non-existent records.
Configuration Issues: The system configuration may not be set up correctly to handle the specific data being migrated. Authorization Issues: The user performing the migration may not have the necessary permissions to create or modify the master data.
Solution: To resolve the UPO_MIG389 error, you can take the following
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