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

/SAPAPO/PFCS_MESS521 - Overview

• 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