How To Fix /ISDFPS/MSG_GAF_PE026 - End date is before the start date

/ISDFPS/MSG_GAF_PE026 - Overview

• Message type: E = Error

• Message class: /ISDFPS/MSG_GAF_PE -

• Message number: 026

• Message text: End date is before the start date

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 /ISDFPS/MSG_GAF_PE026 - End date is before the start date ?

  The SAP error message /ISDFPS/MSG_GAF_PE026 indicates that there is a problem with the date configuration in your system, specifically that the end date is set before the start date. This error typically occurs in scenarios involving planning, scheduling, or project management within SAP, particularly in the context of the SAP Integrated Business Planning (IBP) or similar modules.
  
  Cause:
  
  Incorrect Date Entry: The most common cause is that the user has entered an end date that is earlier than the start date in a planning or scheduling transaction.
  Data Migration Issues: If data has been migrated from another system, there may be inconsistencies in date formats or values.
  Configuration Errors: There may be issues in the configuration of the planning scenarios or project timelines that lead to this inconsistency.
  User Input Error: Users may inadvertently select the wrong dates due to a misunderstanding of the date fields.
  
  
  Solution:
  
  Check Date Entries: Review the start and end dates in