How To Fix /SAPAPO/PPO_OPT128 - End Date should not be less than the Start Date

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PPO_OPT -

• Message number: 128

• Message text: End Date should not be less than the Start Date

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPO_OPT128 - End Date should not be less than the Start Date ?

  The SAP error message /SAPAPO/PPO_OPT128 indicates that there is an issue with the date settings in your planning or optimization process within SAP Advanced Planning and Optimization (APO). Specifically, the error states that the "End Date should not be less than the Start Date," which means that the end date you have specified for a planning object (like a production order, planning run, or similar) is earlier than the start date.
  Cause:
  
  Incorrect Date Input: The most common cause is that the user has entered an end date that is earlier than the start date in the planning transaction or configuration.
  Data Entry Error: This could be due to a simple typographical error when entering dates.
  System Configuration: In some cases, the system configuration or settings may lead to incorrect date calculations or defaults.
  
  Solution:
  
  Check Date Inputs: Review the dates you have entered for the planning object. Ensure that the end date is indeed later than the start date.
  Correct the Dates: If you find that the end date is incorrect, update it to a valid date that is after the start date.
  Validation: Implement validation checks in your data entry process to prevent this error from occurring in the future.
  Review Planning Parameters: If the dates are being generated or calculated by the system, review the planning parameters or settings that might be influencing these dates.
  Consult Documentation: If you are unsure about the correct dates to enter, consult the relevant SAP documentation or your organization's planning guidelines.
  
  Related Information:
  
  Transaction Codes: Depending on where you encounter this error, you may be using transaction codes like /SAPAPO/OPTIMIZE, /SAPAPO/DP, or others related to planning and optimization.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context or solutions.
  User Training: Ensure that users involved in planning processes are trained on how to correctly enter and manage dates within the system to minimize errors.
  
  If the problem persists after checking the above points, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the configuration and data flow within your SAP APO system.