How To Fix IO301 - Parameter &1 was illegally transferred during operation &2

SAP Error Message - Details

• Message type: E = Error

• Message class: IO - Plant Maintenance: Object List

• Message number: 301

• Message text: Parameter &1 was illegally transferred during operation &2

What causes this issue?

The system does not conform to the parameter passing rules
according to T377X.

System Response

INCLUDE KEINE-FUNKTION OBJECT DOKU ID TX

How to fix this error?

Current procedure: Send an internal problem message with case
documentation to Michael Richarz, SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IO301 - Parameter &1 was illegally transferred during operation &2 ?

  The SAP error message IO301 indicates that a parameter was incorrectly transferred during a specific operation. This error typically arises in the context of Integrated Planning or when dealing with certain transactions in SAP that involve parameters or data entries.
  Cause:
  The error message IO301 can occur due to several reasons, including:
  
  Invalid Parameter Value: The parameter being passed to the operation is not valid or does not meet the expected criteria.
  Data Type Mismatch: The data type of the parameter does not match what is expected by the operation.
  Missing Required Parameters: Some required parameters may not have been provided, leading to an incomplete or invalid operation.
  Configuration Issues: There may be issues with the configuration of the relevant modules or settings in SAP that lead to this error.
  
  Solution:
  To resolve the IO301 error, you can take the following steps:
  
  Check Parameter Values: Review the values being passed for the parameters in the operation. Ensure they are valid and conform to the expected formats and types.
  Review Documentation: Consult the SAP documentation or help files related to the specific operation to understand the required parameters and their expected values.
  Debugging: If you have access to debugging tools, you can trace the execution of the operation to identify where the invalid parameter is being set or passed.
  Configuration Review: Check the configuration settings related to the operation in question. Ensure that all necessary settings are correctly configured.
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error message. SAP frequently updates its knowledge base with solutions to common issues.
  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 the context of the error, you may be working with specific transaction codes related to planning, reporting, or data entry.
  SAP Modules: This error may be encountered in modules such as SAP Integrated Business Planning (IBP), SAP Controlling (CO), or others that involve operational parameters.
  User Roles and Authorizations: Ensure that the user executing the operation has the necessary authorizations to perform the action, as lack of permissions can sometimes lead to unexpected errors.
  
  By following these steps and gathering relevant information, you should be able to diagnose and resolve the IO301 error in your SAP environment.