How To Fix K1001 - Internal error: transfer parameter '&' not set (&, &)

SAP Error Message - Details

• Message type: E = Error

• Message class: K1 - Cost Object Controlling Interface

• Message number: 001

• Message text: Internal error: transfer parameter '&' not set (&, &)

What causes this issue?

A system error occurred. Internal transfer parameter &V1& was not set.
The error occurred for object &V2&, costing table item &V3&.

How to fix this error?

Check the log for possible causes, and inform your system
administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message K1001 - Internal error: transfer parameter '&' not set (&, &) ?

  The SAP error message K1001, which states "Internal error: transfer parameter '&' not set (&, &)", typically indicates that there is an issue with the configuration or data transfer parameters in the SAP system, particularly in the context of controlling (CO) or financial accounting (FI) modules.
  Cause:
  
  Missing Parameters: The error often arises when certain required parameters for a transaction or report are not set or are incorrectly configured.
  Custom Code Issues: If there are custom programs or enhancements, they might not be handling parameters correctly.
  Data Inconsistencies: There may be inconsistencies in the data being processed, such as missing master data or incorrect settings in the configuration.
  System Bugs: Occasionally, this error can be due to bugs in the SAP system or specific transactions.
  
  Solution:
  
  Check Configuration: Review the configuration settings in the relevant modules (CO, FI) to ensure that all necessary parameters are set correctly.
  Review Transaction Data: Ensure that the data being processed is complete and valid. Check for missing master data or incorrect entries.
  Debugging: If you have access to debugging tools, you can analyze the program or transaction that triggered the error to identify which parameter is missing.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal. There may be specific notes addressing this error with patches or workarounds.
  Consult Documentation: Review the documentation for the specific transaction or report to ensure that all required fields and parameters are being populated correctly.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may want to check transaction codes related to CO or FI, such as KSB1 (Cost Centers: Actual Line Items) or FBL1N (Vendor Line Item Display).
  User Exits and BAdIs: If custom logic is involved, check for any user exits or BAdIs that might be affecting the parameter settings.
  System Logs: Review system logs (transaction SLG1) for additional error messages or warnings that might provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the K1001 error in your SAP system.