How To Fix CY856 - Interval entered already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 856

• Message text: Interval entered already exists

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 CY856 - Interval entered already exists ?

  The SAP error message CY856: Interval entered already exists typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with cost center planning or activity type planning. This error indicates that the system has detected an attempt to create or modify a planning interval that overlaps with an existing interval.
  Cause:
  
  
  Overlapping Intervals: The most common cause of this error is that the planning interval you are trying to enter overlaps with an existing interval in the system. This can happen if:
  
  You are trying to enter a new planning period that starts before the existing one ends.
  You are trying to enter a new planning period that ends after the existing one starts.
  
  
  
  Data Entry Errors: Sometimes, this error can arise from simple data entry mistakes, such as incorrect dates or times.
  
  
  Configuration Issues: There may be configuration settings in the system that enforce strict rules on planning intervals, leading to this error.
  
  
  Solution:
  
  
  Check Existing Intervals: Review the existing planning intervals in the system to identify any overlaps. You can do this by:
  
  Navigating to the relevant planning transaction (e.g., KP06 for cost center planning).
  Checking the existing intervals for the cost center or activity type you are working with.
  
  
  
  Adjust Your Interval: If you find that your new interval overlaps with an existing one, you will need to adjust your planning interval to ensure it does not conflict. This may involve:
  
  Changing the start and end dates of your new interval.
  Deleting or modifying the existing interval if it is no longer needed.
  
  
  
  Consult Documentation: If you are unsure about the intervals or how to adjust them, consult the SAP documentation or your organization's SAP support team for guidance.
  
  
  System Configuration: If the issue persists and you believe it is related to system configuration, you may need to work with your SAP Basis or configuration team to review the settings related to planning intervals.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KP06 (Cost Center Planning), KP26 (Activity Type Planning), and others that may be relevant to your planning activities.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions for specific scenarios.
  User Authorization: Ensure that you have the necessary authorizations to create or modify planning intervals in the system.
  
  By following these steps, you should be able to resolve the CY856 error and successfully manage your planning intervals in SAP.