How To Fix FC126 - You want to transfer & characters, but only 18 are allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: FC - FI configuration error messages

• Message number: 126

• Message text: You want to transfer & characters, but only 18 are allowed

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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Smart SAP Assistant

• What is the cause and solution for SAP error message FC126 - You want to transfer & characters, but only 18 are allowed ?

  The SAP error message FC126 indicates that there is an attempt to transfer more characters than the system allows for a specific field or parameter. In this case, the message states that you want to transfer a certain number of characters (represented by "&"), but the system only permits a maximum of 18 characters.
  Cause:
  The error typically arises in scenarios where data is being inputted or transferred into a field that has a defined character limit. This can occur in various contexts, such as:
  
  Inputting data into a form or transaction that has a character limit.
  Transferring data from one system to another (e.g., during an interface or data upload).
  Using a specific function module or BAPI that has restrictions on the length of input parameters.
  
  Solution:
  To resolve the FC126 error, you can take the following steps:
  
  
  Check Field Length: Identify the field or parameter that is causing the error. Review the documentation or field properties to confirm the maximum allowed character length (in this case, 18 characters).
  
  
  Trim Input Data: If the data you are trying to input exceeds the allowed length, you will need to truncate or shorten the data to fit within the limit. This may involve:
  
  Reducing the number of characters in the input.
  Abbreviating words or using codes instead of full descriptions.
  
  
  
  Modify Data Transfer Logic: If the error occurs during a data transfer process (e.g., batch input, data upload), ensure that the logic used to prepare the data respects the character limits. This may involve adding validation checks before the transfer occurs.
  
  
  Consult Documentation: If you are using a specific SAP module or function, refer to the relevant SAP documentation or help files to understand the constraints and requirements for the fields involved.
  
  
  Testing: After making the necessary adjustments, test the process again to ensure that the error no longer occurs.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific transaction or function you are using.
  Field Definitions: Review the data dictionary (SE11) for the relevant table or structure to understand the field definitions and constraints.
  User Exits or Enhancements: If you have custom logic that interacts with standard SAP processes, ensure that it adheres to the character limits defined by SAP.
  
  By following these steps, you should be able to resolve the FC126 error and successfully transfer the required data within the allowed character limits.