How To Fix CNV_20800156 - Participating customers have different Deletion flag (KNA1-LOEVM)

CNV_20800156 - Overview

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 156

• Message text: Participating customers have different Deletion flag (KNA1-LOEVM)

Diagnosis
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 <ZK>Deletion Flag</>. (This
is determined by the indicator <ZK>Deletion Flag</>, field KNA1-LOEVM).
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.
Procedure
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 <ZK>Deletion Flag</> 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 - <ZH>before</> you continue with the conversion.

Error message extract from SAP system. Copyright SAP SE.

CNV_20800156 - Details

• The SAP error message CNV_20800156 indicates that there is a discrepancy in the deletion flag (LOEVM) for customer master records (KNA1) among participating customers during a data migration or conversion process. This typically occurs in scenarios involving data transfer, such as during a system upgrade, data migration, or when using SAP's Customer Migration Tool.
  
  Cause:
  The error arises when the deletion flag (LOEVM) for customer records is not consistent across the participating customers. Specifically, it means that some customer records are marked for deletion (LOEVM = 'X'), while others are not (LOEVM = ' ' or blank). This inconsistency can lead to issues during data processing, as the system expects uniformity in the deletion status of the records being processed.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Inconsistent Records:
  
  Use transaction codes like SE16 or SE11 to access the KNA1 table and check the LOEVM field for the customer records