Message type: E = Error
Message class:  MPE_OAN - Operation Activity Network Messages 
Message number: 174
Message text: Work instruction content with UUID &1 already exists
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The SAP error message MPE_OAN174 indicates that there is an attempt to create or modify a work instruction in the system, but a work instruction with the same UUID (Universally Unique Identifier) already exists. This can occur in various scenarios, such as when importing data, creating new work instructions, or during system integrations.
Cause: Duplicate UUID: The most common cause is that the UUID being used for the new work instruction is already associated with an existing work instruction in the system. Data Import Issues: If you are importing data from an external source, there may be duplicates in the source data. System Integration: If multiple systems are integrated and they are trying to create work instructions with the same UUID, this error can occur. Manual Entry Errors: If users are manually entering work instructions, they may inadvertently use an existing UUID.
Solution: Check Existing Work Instructions: Use transaction codes like IW31 or IW32 to check if
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