How To Fix CN159 - Enter material number

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 159

• Message text: Enter material 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.

What else can you do?

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN159 - Enter material number ?

  The SAP error message CN159 "Enter material number" typically occurs in the context of project management or production planning when a user attempts to perform an action that requires a material number, but none has been provided. This error is common in transactions related to network activities, cost planning, or material requirements planning.
  
  Cause:
  
  Missing Material Number: The most straightforward cause is that the user has not entered a material number in the relevant field.
  Incorrect Transaction: The user may be in a transaction that requires a material number but is not in the correct context to provide one.
  
  Configuration Issues: There may be configuration settings in the SAP system that require a material number for certain operations, and these settings may not be aligned with the user's actions.
  User Input Error: The user may have overlooked the field or made a mistake while entering data.
  
  
  Solution:
  
  Enter Material Number: The immediate solution is to ensure that