How To Fix CY126 - Please select at least one period

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 126

• Message text: Please select at least one period

What causes this issue?

From the standard overview, you can call the capacity detail display
for selected periods. You must mark these periods first.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY126 - Please select at least one period ?

  The SAP error message CY126 ("Please select at least one period") typically occurs in the context of planning or reporting transactions within the SAP system, particularly in modules related to Controlling (CO) or Production Planning (PP). This error indicates that the user has not selected any time period for the operation they are trying to perform, which is required for the system to process the request.
  Cause:
  
  No Period Selected: The most common cause is that the user has not selected any period (e.g., month, quarter, year) in the selection screen of the transaction.
  Incorrect Configuration: There may be issues with the configuration of the planning or reporting settings that do not allow for periods to be selected.
  User Input Error: The user may have overlooked the period selection field or may not have filled it out correctly.
  
  Solution:
  
  Select a Period: Ensure that you select at least one period in the selection screen before executing the transaction. This could involve choosing a specific month, quarter, or year depending on the context of the transaction.
  Check Configuration: If the issue persists, check the configuration settings in the relevant module (e.g., CO or PP) to ensure that periods are defined correctly and that the system is set up to allow period selection.
  Review User Authorizations: Ensure that the user has the necessary authorizations to access the periods in question.
  Consult Documentation: Refer to the SAP documentation or help files for the specific transaction you are using to understand the required fields and their implications.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to planning and reporting, such as KP06 (Cost Center Planning), C223 (Planning for Production Orders), etc.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional context or fixes.
  User Training: If this error is common among users, consider providing training or documentation to help them understand how to properly select periods in the system.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with your SAP support team or a functional consultant who can provide more specific guidance based on your system configuration and business processes.