How To Fix ICC-FI155 - Program error when reading an internal table

ICC-FI155 - Overview

• Message type: E = Error

• Message class: ICC-FI - Dunning (Sweden)

• Message number: 155

• Message text: Program error when reading an internal table

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.

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ICC-FI155 - Details

• The SAP error message ICC-FI155, which indicates a "Program error when reading an internal table," typically arises when there is an issue with the internal data structures used in the program. This can occur due to various reasons, such as:
  Causes:
  
  Data Consistency Issues: The internal table may not be populated correctly, leading to inconsistencies when the program attempts to read from it.
  Incorrect Table Structure: The structure of the internal table may not match the expected format, causing the program to fail when trying to access its fields.
  Null or Empty Table: The internal table might be empty or not initialized properly before being accessed.
  Program Logic Errors: There may be logical errors in the ABAP code that lead to incorrect handling of the internal table.
  Memory Issues: In some cases, memory allocation issues can lead to problems when accessing internal tables.
  
  Solutions:
  
  Debugging: Use the ABAP debugger to step through the code and identify where the