How To Fix RSL_UI123 - Error while processing data. Invalid length for value '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSL_UI -

• Message number: 123

• Message text: Error while processing data. Invalid length for value '&1'

What causes this issue?

Value '&V1&' in the file (row &V2&, column &V3&) is longer than the
established length.
The system analyzed the file data to establish the column properties
(data type, length, characteristic/key figure). Only a certain part of
the file was analyzed due to performance reasons.
The error described above did not occur in the analyzed part of the
file.

System Response

The system investigated the value and established the length '&V4&'.

How to fix this error?

Set the length '&V4&' for column '&V3&'.
You can only set the length if you have activated the 'leading zeros'
property for the column. Alternatively you can use the <LS>Analyze
Selected Columns</> function in the column overview. The system then
analyzes all the values in the selected columns and sets the properties.
Now perform the operation again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSL_UI123 - Error while processing data. Invalid length for value '&1' ?

  The SAP error message RSL_UI123, which states "Error while processing data. Invalid length for value '&1'", typically indicates that there is an issue with the length of a value being processed in a user interface (UI) context, often related to data input or data transfer.
  Cause:
  
  Data Length Mismatch: The error usually arises when the length of the data being inputted or processed exceeds the defined limits in the database or application logic. For example, if a field is defined to accept a maximum of 10 characters, but the input is 15 characters, this error may occur.
  Incorrect Data Type: If the data type of the input does not match the expected type (e.g., a string is expected but a numeric value is provided), it can lead to this error.
  Configuration Issues: Sometimes, the error can be due to incorrect configuration settings in the SAP system, such as field definitions or data model settings.
  
  Solution:
  
  Check Input Values: Review the input values being processed when the error occurs. Ensure that they conform to the expected length and data type as defined in the system.
  Field Definitions: Verify the field definitions in the relevant data model or database table. Ensure that the lengths defined for the fields match the data being inputted.
  Data Validation: Implement or enhance data validation checks in the UI to prevent users from entering values that exceed the allowed length.
  Debugging: If you have access to the development environment, consider debugging the application to trace where the error is being triggered. This can provide insights into the specific data causing the issue.
  Consult Documentation: Review SAP documentation or notes related to the specific module or transaction you are working with. There may be known issues or patches available that address this error.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for RSL_UI123 in the SAP Support Portal.
  Transaction Codes: If this error occurs in a specific transaction, note the transaction code and check for any related configuration or customization that may be causing the issue.
  User Forums: Consider searching or posting in SAP community forums or user groups. Other users may have encountered the same issue and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.