How To Fix CNV_20800167 - Participating customers have different Dunning level (KNB5-MAHNS)

CNV_20800167 - Overview

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 167

• Message text: Participating customers have different Dunning level (KNB5-MAHNS)

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>Dunning level</>.
(This is determined by the indicator <ZK>Dunning level</>, field
KNB5-MAHNS).
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>Dunning level</> 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_20800167 - Details

• The SAP error message CNV_20800167 indicates that there is a discrepancy in the dunning levels of participating customers during a data migration or conversion process. This error typically arises in scenarios where customer master data is being transferred or consolidated, and it highlights that the dunning levels (which are used to manage overdue payments) for the customers involved are not aligned.
  
  Cause:
  The root cause of this error is that the dunning levels for the customers being processed are different. In SAP, the dunning level is a key field in the customer master data (specifically in the KNB5 table) that indicates the stage of the dunning process for a customer. If you are trying to migrate or consolidate customer data and the dunning levels do not match, the system will throw this error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Dunning Levels: Review the dunning levels of the participating customers