How To Fix RSDRO123 - Key value exists in duplicate (not allowed by the DataStore type)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDRO - ODS Update/Activation

• Message number: 123

• Message text: Key value exists in duplicate (not allowed by the DataStore type)

What causes this issue?

A key value was loaded for the second time. The type of DataStore object
set is <LS>not allowed for overwriting data records.</> In this case,
you are not allowed to load a key value twice.

System Response

Request &v1& / data package &v2&

How to fix this error?

Either delete the request without posting the already existing data
records again, or remove the data records with the critical key values
by selectively deleting from the table for the active data.

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 RSDRO123 - Key value exists in duplicate (not allowed by the DataStore type) ?

  The SAP error message RSDRO123 indicates that there is a duplicate key value in a DataStore Object (DSO) that is not allowed due to the constraints of the DSO type. This typically occurs when you are trying to load data into a DSO that is set up to enforce unique keys, and the data being loaded contains duplicate entries for those keys.
  Cause:
  
  Duplicate Data: The most common cause is that the data being loaded into the DSO contains duplicate key values. This can happen if the source data itself has duplicates or if the transformation logic does not properly handle duplicates.
  Incorrect Data Source: The data source might be incorrectly configured, leading to the extraction of duplicate records.
  Transformation Logic: The transformation rules applied during the data load may not be filtering out duplicates as expected.
  Data Model Design: The DSO may be designed to enforce unique keys, and the incoming data does not comply with this requirement.
  
  Solution:
  
  
  Identify Duplicates: 
  
  Check the source data for duplicates. You can do this by querying the source table or using a tool to identify duplicate records based on the key fields.
  Use transaction codes like SE16 or SE11 to analyze the data in the source tables.
  
  
  
  Adjust Transformation Logic:
  
  Modify the transformation rules to ensure that duplicates are handled appropriately. This may involve aggregating data or filtering out duplicates before loading.
  Use the DTP (Data Transfer Process) settings to ensure that duplicates are not passed through.
  
  
  
  Change Data Source:
  
  If the data source is incorrect or not suitable, consider changing it to one that provides unique records.
  
  
  
  Data Cleansing:
  
  Implement data cleansing processes to remove duplicates from the source data before loading it into the DSO.
  
  
  
  Check DSO Settings:
  
  Review the settings of the DSO to ensure that it is configured correctly for the type of data being loaded. If necessary, consider changing the DSO type or its key fields.
  
  
  
  Use InfoPackage:
  
  If you are using an InfoPackage to load data, ensure that the settings are correct and that it is not set to allow duplicates if the DSO does not support them.
  
  
  
  Related Information:
  
  DataStore Object (DSO): A DSO is a type of data storage in SAP BW that allows for the storage of detailed transactional data. It can be set up to enforce unique keys, which is crucial for maintaining data integrity.
  Key Fields: Key fields in a DSO are the fields that uniquely identify a record. If the incoming data has duplicate values for these fields, the error will occur.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  
  By following these steps, you should be able to resolve the RSDRO123 error and successfully load your data into the DSO.