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

SAPLWSPY001 - Overview

• 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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SAPLWSPY001 - Details

• 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