How To Fix K9029 - The row you entered already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: K9 - CO Planning Processor

• Message number: 029

• Message text: The row you entered already exists

What causes this issue?

You entered a new row.
The characteristic value or combinations of characteristic values
entered in the lead column already exist in another row.
Rows with identical characteristic values are not allowed as this can
lead to duplicate databank records with the same key.

System Response

The given row is rejected.

How to fix this error?

Enter another characteristic value for at least one characteristic.
Alternately, delete it using the "Reset row" function (or using the
"Delete" function if you are planning with MS Excel).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message K9029 - The row you entered already exists ?

  The SAP error message K9029, which states "The row you entered already exists," typically occurs in the context of data entry or data processing within SAP, particularly in modules related to controlling (CO) or financial accounting (FI). This error indicates that the system has detected a duplicate entry that violates the uniqueness constraint of the data being processed.
  Causes:
  
  Duplicate Entries: The most common cause is that the user is trying to enter a record that already exists in the database. This could be due to manual entry errors or data import processes that are not properly managed.
  Data Import Issues: If you are importing data from an external source, there may be duplicates in the source data that are not being filtered out.
  Configuration Issues: Sometimes, the configuration of the system may lead to unexpected behavior, causing the system to misinterpret valid entries as duplicates.
  Concurrent Processing: If multiple users are trying to enter the same data simultaneously, it may lead to this error.
  
  Solutions:
  
  Check for Duplicates: Before entering new data, check the existing records to ensure that the entry you are trying to make does not already exist. You can use transaction codes like SE16 or SE11 to view the relevant database tables.
  Data Validation: Implement data validation checks in your data entry process to prevent duplicates from being entered. This can include using unique keys or validation rules.
  Review Import Data: If you are importing data, review the source data for duplicates and clean it up before importing it into SAP.
  Transaction Logs: Check transaction logs or change logs to see if the entry was made by another user or process, which could help identify the source of the duplication.
  Consult Documentation: Review SAP documentation or consult with your SAP support team to understand the specific context of the error and any related configuration settings that may need adjustment.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KSB1 (Cost Centers: Actual Line Items) or KOB1 (Order: Actual Line Items) to analyze existing entries.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  User Training: Ensure that users are trained on proper data entry procedures to minimize the risk of duplicate entries.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP support team or a technical consultant to investigate further.