How To Fix /SAPAPO/MA618 - Negative proportions not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MA -

• Message number: 618

• Message text: Negative proportions not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MA618 - Negative proportions not possible ?

  The SAP error message /SAPAPO/MA618 Negative proportions not possible typically occurs in the context of Advanced Planning and Optimization (APO) when dealing with planning data, particularly in the context of demand planning or supply network planning. This error indicates that there is an attempt to set negative proportions in a planning scenario, which is not allowed.
  Cause:
  
  Negative Proportions: The error arises when the system encounters a situation where the proportion of a certain element (like a product or resource) is calculated to be negative. This can happen due to incorrect configuration or data input.
  Data Inconsistencies: There may be inconsistencies in the master data or planning data, such as incorrect settings in the planning book or data that does not align with the expected input.
  Incorrect Planning Parameters: The planning parameters or settings may not be correctly defined, leading to calculations that result in negative values.
  
  Solution:
  
  Check Master Data: Review the master data for the relevant products or resources. Ensure that all proportions and related values are correctly defined and do not lead to negative calculations.
  Review Planning Book Settings: Check the settings in the planning book to ensure that the key figures and their calculations are set up correctly. Look for any formulas or calculations that might inadvertently lead to negative values.
  Adjust Proportions: If you are manually entering proportions, ensure that all values are non-negative and that the total proportions sum up to a valid value (e.g., 100%).
  Data Consistency Check: Run consistency checks on the planning data to identify any discrepancies or errors that may be causing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of APO you are using, as there may be known issues or patches that address this error.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/DP for demand planning or /SAPAPO/SC for supply chain planning.
  SAP Notes: Search for SAP Notes related to this error message in the SAP Support Portal, as there may be specific fixes or recommendations provided by SAP.
  User Forums: Engage with user forums or communities where SAP APO users discuss similar issues. This can provide insights and potential solutions from others who have faced the same error.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.