How To Fix CNV_20800207 - Participating customers have different Block key for payment (KNB1-ZAHLS)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 207

• Message text: Participating customers have different Block key for payment (KNB1-ZAHLS)

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

What causes this issue?

According to the mapping, you want to merge two or more old customer
records into one target customer record. However, not all the old
records have identical master data settings: It was found that old
customer records have different values for Block key for payment. (This
is determined by the indicator Block key for payment, field KNB1-ZAHLS).
This may lead to inconsistencies in some applications related to target
customer data.

System Response

<ZH>Error</>
From a technical perspective, this message can be ignored. This may make
sense in the following cases:
No postings to the respective customer records have been made.
The respective customer records are not used any longer and are meant to
be merged into a dummy record

How to fix this error?

Analyze the situation, and either change the mapping so that only
customer records with identical master data settings are merged, or
decide to ignore the message because one of the special cases described
above applies.
If you decide to ignore the error even though none of the special cases
described above applies, consider that<ZH> the target customer record
will get the Block key for payment of the old customer record for which
priority indicator is set. </>Make sure to evaluate the impact of this
decision - for example regarding potential inconsistencies and required
follow-up activities - before you continue with the conversion.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800207 - Participating customers have different Block key for payment (KNB1-ZAHLS) ?

  The SAP error message CNV_20800207 indicates that there is a discrepancy in the payment block key (field KNB1-ZAHLS) for participating customers during a data migration or conversion process. This error typically arises in scenarios where customer master data is being migrated from one system to another, and the payment block key for the customers involved does not match.
  Cause:
  
  
  Inconsistent Data: The primary cause of this error is that the participating customers have different values for the payment block key in the source system. This inconsistency can occur due to:
  
  Different configurations or settings in the source systems.
  Manual data entry errors.
  Data being extracted from multiple sources with varying definitions of the payment block key.
  
  
  
  Data Migration Issues: If the data migration process is not correctly mapping the payment block keys, it can lead to this error.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Identify the Customers: Determine which customers are causing the issue by checking the logs or error messages that accompany the CNV_20800207 error.
  
  
  Check Payment Block Keys: Review the payment block keys (KNB1-ZAHLS) for the identified customers in both the source and target systems. Ensure that they are consistent and correctly defined.
  
  
  Standardize Payment Block Keys: If there are discrepancies, standardize the payment block keys across the participating customers. This may involve:
  
  Updating the payment block key in the source system to match the target system.
  Adjusting the mapping in the data migration process to ensure that the correct payment block key is used.
  
  
  
  Data Cleansing: Perform data cleansing to ensure that all customer master data is accurate and consistent before migration. This may involve:
  
  Correcting any manual entry errors.
  Ensuring that all relevant fields are populated correctly.
  
  
  
  Re-run the Migration: After making the necessary adjustments, re-run the migration process to see if the error persists.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool or process you are using, as there may be additional guidelines or best practices to follow.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  Data Migration Tools: If you are using a specific data migration tool (like SAP S/4HANA Migration Cockpit or SAP Data Services), consult the documentation for that tool for specific troubleshooting steps.
  Transaction Codes: Use transaction codes like SE16 or SE11 to view and analyze the customer master data tables (e.g., KNB1) to identify discrepancies.
  
  By following these steps, you should be able to resolve the CNV_20800207 error and ensure a smooth data migration process.