How To Fix MPE_OAN171 - Work instruction &1, &2 referenced in OA &3, &4 not found

MPE_OAN171 - Overview

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 171

• Message text: Work instruction &1, &2 referenced in OA &3, &4 not found

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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MPE_OAN171 - Details

• The SAP error message MPE_OAN171 indicates that a work instruction referenced in an Operational Activity (OA) cannot be found. This typically occurs in the context of SAP's Manufacturing or Production Planning modules, where work instructions are essential for guiding production processes.
  
  Cause:
  
  Missing Work Instruction: The specified work instruction does not exist in the system. This could be due to it not being created, deleted, or not properly linked to the operational activity.
  Incorrect Configuration: The configuration settings for the work instructions or operational activities may be incorrect, leading to a mismatch.
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the database or issues with the master data.
  Authorization Issues: The user may not have the necessary permissions to access the work instruction or operational activity.
  
  
  Solution:
  
  Verify Existence: Check if the work instruction referenced in the error message exists in the system. You can do this by navigating to the