How To Fix SAPLWSPY001 - Invalid import parameter for function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SAPLWSPY - More Than One Vendor for a Purchase Order

• Message number: 001

• Message text: Invalid import parameter for function module &1

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAPLWSPY001 - Invalid import parameter for function module &1 ?

  The SAP error message SAPLWSPY001: Invalid import parameter for function module &1 typically indicates that there is an issue with the parameters being passed to a function module in SAP. This error can occur for several reasons, and understanding the cause and potential solutions can help resolve the issue.
  Causes:
  
  Incorrect Parameter Type: The parameters being passed to the function module do not match the expected data types. For example, a string might be passed where a numeric value is expected.
  Missing Required Parameters: One or more required parameters are not being provided when calling the function module.
  Incorrect Parameter Names: The names of the parameters being passed do not match the expected parameter names in the function module.
  Data Length Issues: The length of the data being passed may exceed the defined length in the function module.
  Version Mismatch: If the function module has been updated or changed, the calling program may not be compatible with the new version.
  
  Solutions:
  
  Check Parameter Definitions: Review the documentation for the function module to ensure that you are passing the correct parameters with the correct data types and lengths.
  Debugging: Use the SAP debugger to step through the code where the function module is called. This can help identify which parameter is causing the issue.
  Review Calling Code: Ensure that the code calling the function module is correctly populating all required parameters and that they are of the correct type.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or updates regarding the function module in question. There may be known issues or patches available.
  Testing: If possible, test the function module in isolation with known good parameters to ensure it works as expected. This can help isolate whether the issue is with the function module itself or the calling code.
  
  Related Information:
  
  Function Module Documentation: You can access the documentation for the specific function module in transaction SE37 (Function Builder) to see the expected parameters and their types.
  SAP Community: The SAP Community forums can be a valuable resource for finding similar issues and solutions shared by other users.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE37 (Function Module), SE80 (Object Navigator), and SE11 (Data Dictionary) for further investigation.
  
  By following these steps, you should be able to identify and resolve the issue causing the SAPLWSPY001 error message.