How To Fix CNV_20900056 - Participating vendors have different Tax Number 3 (LFA1-STCD3)

CNV_20900056 - Overview

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 056

• Message text: Participating vendors have different Tax Number 3 (LFA1-STCD3)

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 3'. (This is determined by the
indicator 'Tax Number 3', field LFA1-STCD3).
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 Number3 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.

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_20900056 - Details

• The SAP error message CNV_20900056 indicates that there is a discrepancy in the Tax Number 3 (LFA1-STCD3) for 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 Number 3 values for these vendors do not match, which can lead to inconsistencies in tax reporting and compliance.
  
  Cause:
  
  
  Data Inconsistency: The primary cause of this error is that the participating vendors have different values for Tax Number 3. This could be due to:
  
  Incorrect data entry during vendor creation or maintenance.
  Data migration from legacy systems where the tax numbers were not standardized.
  Mismatched vendor records in the source data.
  
  
  
  
  Configuration Issues: There may be configuration settings in the SAP system that require Tax Number 3 to be consistent across certain vendor groups.
  
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Data Review:
  
  Review the vendor records involved in