How To Fix /SAPAPO/PFCS_MESS521 - Internal Error: End Date / Time Stamp Is Before Start Date / Time Stamp

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PFCS_MESS -

• Message number: 521

• Message text: Internal Error: End Date / Time Stamp Is Before Start Date / Time Stamp

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PFCS_MESS521 - Internal Error: End Date / Time Stamp Is Before Start Date / Time Stamp ?

  The SAP error message /SAPAPO/PFCS_MESS521 Internal Error: End Date / Time Stamp Is Before Start Date / Time Stamp typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is a mismatch in the date and time settings for a planning function or process. This error indicates that the end date or time stamp specified is earlier than the start date or time stamp, which is logically incorrect.
  Cause:
  
  Incorrect Date/Time Input: The most common cause is that the user has entered an end date or time that is earlier than the start date or time in a planning function or process.
  Data Corruption: There may be issues with the data in the system, such as corrupted records or incorrect configurations.
  Configuration Issues: The planning function or process may not be configured correctly, leading to invalid date/time settings.
  Time Zone Differences: If the system is set up to handle multiple time zones, discrepancies in time zone settings can lead to this error.
  
  Solution:
  
  Check Input Dates: Review the input parameters for the planning function or process. Ensure that the end date/time is set to a value that is after the start date/time.
  Review Planning Function Configuration: If you are using a custom planning function, check its configuration to ensure that it is set up correctly and that it handles date/time inputs properly.
  Data Validation: Validate the data being processed to ensure there are no corrupted records or invalid entries that could lead to this error.
  System Logs: Check the system logs for any additional error messages or warnings that may provide more context about the issue.
  Time Zone Settings: If applicable, verify the time zone settings in the system to ensure they are consistent and correct.
  Consult Documentation: Refer to SAP documentation or notes related to the specific planning function or process you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Use transaction codes like /SAPAPO/SDP94 or /SAPAPO/MC90 to access planning functions and review their settings.
  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.
  
  By following these steps, you should be able to identify and resolve the cause of the error message.