How To Fix CNV_20900057 - Participating vendors have different Tax Number 4 (LFA1-STCD4)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 057

• Message text: Participating vendors have different Tax Number 4 (LFA1-STCD4)

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 vendor
records into one target vendor record. However, not all the old records
have identical master data settings: It was found that old vendor
records have different 'Tax Number 4'. (This is determined by the
indicator 'Tax Number4', field LFA1-STCD4).
This may lead to inconsistencies in some applications related to target
vendor 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 vendor records have been made.
The respective vendor 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 vendor
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 vendor record
will get the Tax Number4 of the old vendor record for which priority the
indicator is set. </>Make sure to evaluate the impact of this decision -
for example regarding potential inconsistencies and required follow-up
activities - <ZH>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_20900057 - Participating vendors have different Tax Number 4 (LFA1-STCD4) ?

  The SAP error message CNV_20900057 indicates that there is a discrepancy in the tax number (specifically Tax Number 4, represented by the field LFA1-STCD4) among participating vendors during a data migration or conversion process. This error typically arises in scenarios where multiple vendors are being processed, and the system detects that the tax numbers do not match as expected.
  Cause:
  
  
  Data Inconsistency: The primary cause of this error is that the participating vendors have different values in the Tax Number 4 field. This could be due to:
  
  Incorrect data entry during vendor creation or maintenance.
  Data migration from legacy systems where tax numbers were not standardized.
  Vendors being incorrectly linked or associated in the system.
  
  
  
  Configuration Issues: There may be configuration settings in the SAP system that expect certain tax number formats or values that are not being met by the current vendor data.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Data Review:
  
  Review the vendor records involved in the error. Check the LFA1-STCD4 field for each vendor to identify discrepancies.
  Ensure that the tax numbers are correctly entered and conform to the expected format.
  
  
  
  Data Correction:
  
  If discrepancies are found, correct the tax numbers in the vendor master data. This can be done through transaction codes like XK02 (Change Vendor) or MK02 (Change Vendor for Purchasing).
  If the data is being migrated from a legacy system, ensure that the data mapping is correct and that the tax numbers are being transferred accurately.
  
  
  
  Standardization:
  
  If multiple vendors should share the same tax number (for example, if they are part of a group), ensure that the correct tax number is assigned consistently across all relevant vendor records.
  
  
  
  Consult Documentation:
  
  Check SAP documentation or notes related to the specific error message for any additional guidance or patches that may address the issue.
  
  
  
  Testing:
  
  After making corrections, re-run the migration or conversion process to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for vendor management, such as XK01 (Create Vendor), XK03 (Display Vendor), and XK02 (Change Vendor).
  SAP Notes: Search for SAP Notes related to the error message for any specific fixes or recommendations provided by SAP.
  Data Migration Tools: If you are using tools like SAP S/4HANA Migration Cockpit or other data migration tools, ensure that the mapping and transformation rules are correctly set up to handle tax numbers.
  
  By following these steps, you should be able to identify and resolve the issue causing the CNV_20900057 error in your SAP system.