How To Fix OM904 - Please enter blank or X

SAP Error Message - Details

• Message type: E = Error

• Message class: OM - Customizing Materialwirtschaft

• Message number: 904

• Message text: Please enter blank or X

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 OM904 - Please enter blank or X ?

  The SAP error message OM904 ("Please enter blank or X") typically occurs in the context of configuration settings related to the Material Management (MM) module, particularly when dealing with the configuration of the material types or other related settings.
  
  Cause:
  The error message OM904 usually indicates that a required field is not filled out correctly. Specifically, it suggests that the system expects either a blank value or an 'X' (which often signifies a specific option or setting) in a certain field. This can happen in various scenarios, such as:
  
  Incorrect Configuration: When configuring material types, the system may require a specific setting to be either blank or marked with an 'X'.
  Data Entry Error: Users may inadvertently enter an invalid value in a field that only accepts blank or 'X'.
  Missing Default Settings: If default settings for a particular configuration are not set, the system may throw this error.
  
  
  Solution:
  To resolve the OM904 error, you can