How To Fix /SAPF15/F15135 - Processing key cannot be set from &1 to "empty"

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPF15/F15 -

• Message number: 135

• Message text: Processing key cannot be set from &1 to "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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPF15/F15135 - Processing key cannot be set from &1 to "empty" ?

  The SAP error message /SAPF15/F15135 Processing key cannot be set from &1 to "empty" typically occurs in the context of financial document processing, particularly when dealing with the configuration of processing keys in the SAP system. This error indicates that there is an attempt to change a processing key to an empty value, which is not allowed.
  
  Cause:
  
  Invalid Configuration: The processing key is a critical component in financial transactions, and it must always have a valid value. Attempting to set it to an empty string violates the system's constraints.
  Data Entry Error: There may be a mistake in the data entry process where the processing key is inadvertently left blank.
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might be incorrectly handling the processing key, leading to this error.
  Missing Master Data: The relevant master data that should provide the processing key might be missing or incorrectly