How To Fix ME266 - Please select either by activity/operation number or network number

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 266

• Message text: Please select either by activity/operation number or network number

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 ME266 - Please select either by activity/operation number or network number ?

  The SAP error message ME266, which states "Please select either by activity/operation number or network number," typically occurs in the context of project management or production planning when trying to access or manipulate data related to activities or operations in a network.
  Cause:
  This error usually arises when the system expects a selection based on either an activity/operation number or a network number, but neither has been provided, or the provided input does not meet the required criteria. This can happen in various scenarios, such as:
  
  Missing Input: The user did not enter any activity or network number.
  Incorrect Input: The input provided does not correspond to any existing activity or network in the system.
  User Authorization: The user may not have the necessary permissions to view or manipulate the specified activities or networks.
  
  Solution:
  To resolve the ME266 error, you can take the following steps:
  
  
  Check Input: Ensure that you have entered either a valid activity/operation number or a network number. Double-check for typos or incorrect formats.
  
  
  Use Selection Criteria: If you are using a selection screen, make sure to fill in the required fields correctly. If the screen allows for multiple selection criteria, ensure that at least one of the required fields is populated.
  
  
  Verify Existence: Confirm that the activity or network number you are trying to access actually exists in the system. You can do this by navigating to the relevant transaction (e.g., CN41 for networks) and checking if the number is valid.
  
  
  User Authorization: Ensure that you have the necessary authorizations to access the data related to the activity or network. If you suspect authorization issues, contact your SAP security administrator.
  
  
  Consult Documentation: If you are unsure about the required fields or the process, refer to the SAP documentation or help files related to the specific transaction you are using.
  
  
  Contact Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN41 (Network Overview), CJ20N (Project Builder), or others related to project management and production planning.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Training: If you frequently encounter this error, consider additional training on SAP project management or production planning modules to better understand the system's requirements.
  
  By following these steps, you should be able to resolve the ME266 error and proceed with your tasks in SAP.