How To Fix UPO_MIG160 - Field Master missing for the field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UPO_MIG - Message Class for PRA->UOM Migration

• Message number: 160

• Message text: Field Master missing for the field &1

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 UPO_MIG160 - Field Master missing for the field &1 ?

  The SAP error message UPO_MIG160, which states "Field Master missing for the field &1," typically occurs during data migration or when working with certain functionalities in SAP that require specific field definitions or configurations. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  
  Missing Field Master Data: The error indicates that the system is unable to find the necessary master data for a specific field (denoted by &1). This could be due to:
  
  The field not being defined in the system.
  The field being incorrectly configured or not activated.
  The relevant master data not being created or migrated properly.
  
  
  
  Data Migration Issues: If you are performing a data migration, it’s possible that the migration process did not include the necessary field definitions or that the mapping was incorrect.
  
  
  Configuration Issues: The field may not be part of the configuration in the relevant module (e.g., Material Management, Sales and Distribution, etc.).
  
  
  Solution:
  
  
  Check Field Configuration:
  
  Go to the relevant configuration settings in SAP (e.g., SPRO) and verify that the field in question is defined and configured correctly.
  Ensure that the field is part of the relevant data model and that it is activated.
  
  
  
  Create or Update Master Data:
  
  If the field is supposed to have associated master data, ensure that this data is created in the system.
  Use transaction codes like MM01 (for Material Master) or BP (for Business Partner) to create or update the necessary master data.
  
  
  
  Review Migration Process:
  
  If this error occurs during a migration, review the migration templates and ensure that all necessary fields are included and correctly mapped.
  Check the migration logs for any errors or warnings that might indicate what went wrong during the migration.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific module you are working with to understand the requirements for the field in question.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. Provide them with the error message and context for better troubleshooting.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for checking and maintaining master data (e.g., MM02, BP, VD02, etc.).
  SAP Notes: Search for SAP Notes related to UPO_MIG160 in the SAP Support Portal, as there may be specific notes addressing this error.
  Data Migration Tools: If you are using tools like SAP S/4HANA Migration Cockpit or LSMW, ensure that you are following the correct procedures for data migration.
  
  By following these steps, you should be able to identify the cause of the UPO_MIG160 error and implement a solution to resolve it.