How To Fix COCM301 - Select at least one type of reservation

COCM301 - Overview

• Message type: E = Error

• Message class: COCM - Order Change Management

• Message number: 301

• Message text: Select at least one type of reservation

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message COCM301 - Select at least one type of reservation ?

  The SAP error message COCM301, which states "Select at least one type of reservation," typically occurs in the context of the Controlling (CO) module, particularly when dealing with cost center accounting or internal orders. This error indicates that the system requires the user to select at least one type of reservation before proceeding with a transaction or report.
  
  Cause:
  
  No Reservation Type Selected: The user has not selected any reservation type in the relevant transaction screen.
  
  Configuration Issues: There may be configuration settings in the system that require a reservation type to be selected for certain operations.
  User Input Error: The user may have overlooked the selection of a reservation type due to interface design or oversight.
  
  
  Solution:
  
  
  Select a Reservation Type: 
  
  Go back to the transaction screen where the error occurred.
  Look for the section where reservation types are listed.
  Ensure that at least one reservation type is selected before proceeding.
  
  
  
  Check Configuration:
  
  If you are an SAP administrator