How To Fix CNV_PE306 - Currency info already present for area &1 and target &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 306

• Message text: Currency info already present for area &1 and target &2

What causes this issue?

The data is already present.

System Response

By default the data is not overwritten.

How to fix this error?

Check if this behavior suits your requirements:
If yes, no further action is required.
If no, go to the respective troubleshooting activity of this activity
<ZK>Read Relevant Customizing</> and re-read the Customizing for this
area &V1&. This will first delete all entries for this area, then
re-read the Customizing from scratch.

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 CNV_PE306 - Currency info already present for area &1 and target &2 ?

  The SAP error message CNV_PE306 indicates that there is already existing currency information for a specific area and target in the system. This typically occurs during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the execution of a migration project.
  Cause:
  The error arises when the system detects that currency information for the specified area (e.g., a specific financial module or application) and target (e.g., a specific company code or controlling area) already exists in the database. This can happen due to:
  
  Duplicate Data: The migration process is attempting to insert or update currency information that already exists.
  Incorrect Mapping: The mapping of source data to target data may not be correctly defined, leading to attempts to insert existing records.
  Previous Migration Attempts: If a migration process was partially completed or failed, it may have left behind some currency data.
  
  Solution:
  To resolve the CNV_PE306 error, you can take the following steps:
  
  
  Check Existing Data: Verify if the currency information for the specified area and target already exists in the system. You can do this by querying the relevant tables (e.g., T001 for company codes, T001W for plants, etc.) to see if the data is already present.
  
  
  Adjust Migration Logic: If you are using a migration tool or program, review the logic to ensure that it does not attempt to insert data that already exists. You may need to implement checks to skip existing records.
  
  
  Data Cleanup: If the existing data is incorrect or needs to be updated, consider cleaning up the data before re-running the migration. This may involve deleting or modifying existing records.
  
  
  Consult Documentation: Review the documentation for the specific migration tool or process you are using. There may be specific guidelines or configurations that need to be followed to avoid this error.
  
  
  Error Logs: Check the error logs for more detailed information about the context in which the error occurred. This can provide insights into what specific data is causing the issue.
  
  
  Seek Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a technical expert who has experience with data migration in SAP.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE16 (Data Browser), and others that can help you analyze the data.
  Migration Tools: Understand the specific migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and their configurations.
  SAP Notes: Check for any SAP Notes related to the CNV_PE306 error for additional guidance or patches that may address known issues.
  
  By following these steps, you should be able to identify the cause of the CNV_PE306 error and implement a solution to resolve it.