How To Fix C5818 - Process instruction number &/&/&/& is not unique


C5818 - Overview

  • Message type: E = Error

  • Message class: C5 - Master Recipe

  • Message number: 818

  • Message text: Process instruction number &/&/&/& is not unique

  • Show details Hide details
  • What causes this issue?

    The process instruction numbers for phase &V3& of the recipe &V2& in the
    recipe group &V1& are not unique. To process a recipe, the numbers of
    the process instruction for a phase must be unique.

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    How to fix this error?

    Please check the recipe and correct the numbers of the process
    instructions for phase &V3&.

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message C5818 - Process instruction number &/&/&/& is not unique ?
    The SAP error message C5818 indicates that there is a problem with the process instruction number in the context of production planning or process management. This error typically arises when the system encounters non-unique process instruction numbers, which are expected to be unique identifiers for specific process instructions in the system.
    
    Cause: Duplicate Process Instruction Numbers: The most common cause of this error is that there are multiple entries in the system with the same process instruction number. This can happen due to data entry errors, incorrect configuration, or issues during data migration. Incorrect Master Data: If the master data related to process instructions is not properly maintained, it can lead to conflicts and duplicates.
    Configuration Issues: Sometimes, the configuration settings in the SAP system may not be set up correctly, leading to the generation of non-unique identifiers.
    Solution: Identify Duplicates: Use transaction codes like SE16 or SE11 to access the relevant database tables (e.g., the

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