How To Fix CY126 - Please select at least one period

CY126 - Overview

• 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.

CY126 - Details

• 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