How To Fix >4820 - Fill ALV table; receivable already exists - &1 &2 &3

SAP Error Message - Details

• Message type: E = Error

• Message class: >4 - SAP File Transfer Protocol

• Message number: 820

• Message text: Fill ALV table; receivable already exists - &1 &2 &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message >4820 - Fill ALV table; receivable already exists - &1 &2 &3 ?

  The SAP error message "4820 Fill ALV table; receivable already exists - &1 &2 &3" typically occurs in the context of the ALV (ABAP List Viewer) reporting when there is an attempt to add a duplicate entry to an ALV table that already contains a record with the same key.
  Cause:
  
  Duplicate Data: The most common cause of this error is that the data being processed contains duplicate entries for the same key fields. This could happen due to issues in the data extraction logic or if the underlying data source has duplicates.
  Incorrect Logic in ABAP Code: If the ABAP program or report is not correctly handling the data aggregation or selection, it may attempt to insert the same record multiple times into the ALV table.
  Data Consistency Issues: There may be inconsistencies in the data being fetched from the database, leading to the same record being processed multiple times.
  
  Solution:
  
  Check for Duplicates: Review the data being processed to ensure that there are no duplicate entries. You can do this by checking the underlying database tables or the logic used to fetch the data.
  Modify ABAP Code: If you are developing or maintaining the ABAP report, ensure that the logic for populating the ALV table includes checks for existing entries before adding new ones. You can use a hash table or internal table with unique keys to prevent duplicates.
  Debugging: Use the ABAP debugger to step through the code and identify where the duplicate entries are being introduced. This can help you pinpoint the exact location in the code that needs to be modified.
  Data Cleansing: If the issue is due to data quality, consider implementing data cleansing processes to remove duplicates from the source data.
  
  Related Information:
  
  ALV Table Structure: Understand the structure of the ALV table you are working with, including the key fields that define uniqueness.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific transaction or report you are working with.
  Documentation: Review the documentation for the ALV functions you are using to ensure you are following best practices for data handling.
  
  By addressing the root cause of the duplicate entries and ensuring proper data handling in your ABAP code, you should be able to resolve the error message effectively.