How To Fix BL102 - The parameter &1 has an invalid length.

BL102 - Overview

• Message type: E = Error

• Message class: BL - Application Log

• Message number: 102

• Message text: The parameter &1 has an invalid length.

What causes this issue?

The specified parameter has an invalid length.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Parameter may not have a value.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BL102 - The parameter &1 has an invalid length. ?

  The SAP error message BL102, which states "The parameter &1 has an invalid length," typically occurs when a parameter being passed to a function module, method, or transaction does not meet the expected length requirements defined in the system. This can happen in various contexts, such as when dealing with data input, configuration settings, or API calls.
  
  Cause:
  
  Parameter Length Mismatch: The parameter being passed has a length that is either too short or too long compared to what is defined in the data dictionary or the function module.
  Data Type Issues: The data type of the parameter may not match the expected type, leading to length validation failures.
  Incorrect Configuration: If the parameter is part of a configuration setting, it may have been incorrectly set up, leading to invalid lengths.
  User Input Errors: Users may input data that exceeds the allowed length, especially in custom transactions or screens.
  
  
  Solution:
  
  Check Parameter Definition: Review the definition of