How To Fix MSG_UH171 - Line &1: Semantic tag &2 does not exist.

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_UH - Universal Hierarchy Message Class

• Message number: 171

• Message text: Line &1: Semantic tag &2 does not exist.

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 MSG_UH171 - Line &1: Semantic tag &2 does not exist. ?

  The SAP error message MSG_UH171 with the description "Line &1: Semantic tag &2 does not exist" typically occurs in the context of handling data in SAP, particularly when dealing with IDocs, EDI, or similar data processing scenarios. This error indicates that the system is trying to reference a semantic tag that has not been defined or does not exist in the current context.
  Cause:
  
  Missing Semantic Tag: The semantic tag specified in the error message does not exist in the relevant configuration or data structure.
  Incorrect Configuration: There may be a misconfiguration in the IDoc type, message type, or other related settings that leads to the system not recognizing the semantic tag.
  Data Issues: The data being processed may be incomplete or incorrectly formatted, leading to the system being unable to find the expected semantic tag.
  Version Mismatch: If there are changes in the data structure or version updates, the existing configurations may not align with the new definitions.
  
  Solution:
  
  Check Configuration: Verify the configuration settings for the IDoc or message type in transaction codes like WE30 (IDoc types), WE81 (Message types), and WE82 (Basic types). Ensure that the semantic tag is correctly defined.
  Review Data: Inspect the data being processed to ensure that it includes all necessary fields and that the semantic tags are correctly specified.
  Update Definitions: If the semantic tag is indeed missing, you may need to create or update the relevant definitions in the system.
  Consult Documentation: Refer to SAP documentation or notes related to the specific IDoc or message type you are working with to ensure compliance with the expected structure.
  Debugging: If the issue persists, consider debugging the process to identify where the semantic tag is being referenced and why it is not found.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as WE30, WE31, WE81, and WE82 for IDoc and message type management.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific IDoc or message type you are working with.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.