How To Fix W_CB138 - Field is empty

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 138

• Message text: Field is empty

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 W_CB138 - Field is empty ?

  Certainly! Here's detailed information about the SAP error message W_CB138 Field is empty:
  
  SAP Error Message: W_CB138 Field is empty
  
  Cause:
  The warning message W_CB138 typically occurs when a mandatory field in a SAP transaction or program is left empty. This message is a warning (indicated by the "W" prefix) rather than an error, meaning the system is alerting the user that a required field has not been filled, but it may still allow the user to proceed depending on the context.
  The exact field that is empty depends on the transaction or program you are working with. For example, in some SAP modules, this message appears if a key field such as a material number, vendor number, or cost center is missing.
  
  Solution:
  
  
  Identify the Field: Check the screen or the input form where the message appears and identify which field is empty. The message might be accompanied by a field name or highlighted field.
  
  
  Enter the Required Data: Fill in the mandatory field with the appropriate data. For example, if it is a material number, enter a valid material number.
  
  
  Check Field Dependencies: Sometimes, fields are conditionally mandatory based on other inputs. Ensure that all prerequisite fields are correctly filled.
  
  
  Consult Documentation or Help: Use the F1 help on the field to understand what data is expected.
  
  
  Check Customizing: If the field is unexpectedly mandatory or optional, check the configuration or customizing settings in the relevant module.
  
  
  
  Related Information:
  
  Message Class: W_CB138 belongs to message class CB1 or similar, which is often related to Controlling (CO) or other modules depending on the context.
  Message Type: Warning (W) — user is warned but can continue.
  Common Scenarios:
  
  In Controlling (CO) transactions, missing cost center or internal order.
  In Material Management (MM), missing material or vendor.
  In Sales and Distribution (SD), missing customer or sales document field.
  
  
  How to Find More Details:
  
  Use transaction SE91 to look up message class and message number.
  Check the program or transaction documentation.
  Use debugging or system logs if the message is unclear.
  
  
  
  
  If you provide the exact transaction or module where you encounter this message, I can give more precise guidance.