How To Fix /SAPAPO/RET_MESSAGES405 - The final shift cannot lie before the start shift

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 405

• Message text: The final shift cannot lie before the start shift

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RET_MESSAGES405 - The final shift cannot lie before the start shift ?

  The SAP error message /SAPAPO/RET_MESSAGES405 indicates that there is a problem with the scheduling of shifts in the Advanced Planning and Optimization (APO) module. Specifically, the error states that the "final shift cannot lie before the start shift." This typically occurs when the defined time intervals for shifts are not set up correctly, leading to a logical inconsistency in the scheduling.
  Cause:
  
  Incorrect Shift Timing: The end time of a shift is set earlier than the start time. For example, if a shift is defined to start at 10:00 AM and end at 9:00 AM, this will trigger the error.
  Data Entry Errors: Manual entry errors when defining shifts or scheduling can lead to incorrect time settings.
  Configuration Issues: The configuration settings for shifts in the system may not be aligned with the business requirements or may have been incorrectly set up.
  
  Solution:
  
  Check Shift Definitions: Review the shift definitions in the system. Ensure that the end time of each shift is later than the start time. This can be done in the relevant configuration settings for shifts in the APO module.
  Correct Data Entries: If the error is due to incorrect data entries, correct the start and end times for the shifts in question.
  Review Planning Parameters: Check the planning parameters and ensure that they are set correctly to avoid overlaps or incorrect scheduling.
  Test Changes: After making corrections, test the changes to ensure that the error does not reoccur. You can do this by running the planning process again and checking for any further errors.
  Consult Documentation: If you are unsure about the correct configuration, refer to SAP documentation or consult with an SAP expert to ensure that the shifts are set up according to best practices.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/SHIFT to manage shifts or /SAPAPO/PLANNING for planning-related activities.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on configuring shifts in APO.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the error and ensure that your shift scheduling is set up correctly in SAP APO.