How To Fix RU251 - Actual duration + remaining duration exceeds planned duration

SAP Error Message - Details

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 251

• Message text: Actual duration + remaining duration exceeds planned duration

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 RU251 - Actual duration + remaining duration exceeds planned duration ?

  The SAP error message RU251, which states "Actual duration + remaining duration exceeds planned duration," typically occurs in the context of project management or production planning within SAP. This error indicates that the total time spent on a task (actual duration) plus the time still expected to be spent on that task (remaining duration) exceeds the originally planned duration for that task.
  Cause:
  
  Actual Duration Exceeds Planned Duration: The actual time recorded for the task has surpassed what was initially planned.
  Incorrect Remaining Duration: The remaining duration may have been incorrectly estimated or entered, leading to a total that exceeds the planned duration.
  Changes in Project Scope: If the scope of the project has changed, it may require more time than originally planned.
  Data Entry Errors: Mistakes in entering actual or remaining durations can lead to this error.
  Resource Availability: Delays due to resource unavailability can also contribute to this issue.
  
  Solution:
  
  Review Actual and Remaining Durations: Check the actual duration recorded for the task and the remaining duration. Ensure that they are accurate and reflect the current status of the task.
  Adjust Planned Duration: If the task legitimately requires more time due to changes in scope or unforeseen circumstances, consider adjusting the planned duration to accommodate the new estimates.
  Correct Data Entry: If there are errors in the data entry, correct them to ensure that the actual and remaining durations are accurately reflected.
  Consult with Project Stakeholders: Discuss with project managers or stakeholders to understand if there are valid reasons for the increase in duration and to get approval for any necessary changes.
  Use SAP Transaction Codes: Utilize relevant SAP transaction codes (like CJ20N for project management) to make necessary adjustments to the project plan.
  
  Related Information:
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on project management and handling durations.
  Transaction Codes: Familiarize yourself with transaction codes related to project management (e.g., CJ01, CJ02, CJ20N) for managing project structures and durations.
  User Exits and BAdIs: If this error is frequent and affects multiple projects, consider implementing user exits or Business Add-Ins (BAdIs) to customize the behavior of duration calculations.
  Training: Ensure that users involved in project management are trained on how to accurately enter and manage durations in SAP.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the RU251 error effectively.