How To Fix CNV_20900191 - Participating vendors have different Dunning procedure (LFB5-MAHNA)

CNV_20900191 - Overview

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 191

• Message text: Participating vendors have different Dunning procedure (LFB5-MAHNA)

Diagnosis
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 Dunning procedure. (This setting is determined by
the indicator 'Dunning procedure',<ZH> </>field <ZH>LFB5-MAHNA</>).
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.
Procedure
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 Dunning procedure of the old vendor record for which the
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.

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

Error message extract from SAP system. Copyright SAP SE.

CNV_20900191 - Details

• The SAP error message CNV_20900191 indicates that there is a discrepancy in the dunning procedures assigned to participating vendors in a conversion or migration process. This error typically arises during data migration or when consolidating vendor data from different systems or clients where the dunning procedures (which define how overdue payments are managed) differ.
  
  Cause:
  The error occurs because the system has detected that the participating vendors have different dunning procedures assigned to them. In SAP, the dunning procedure is a critical component of the accounts payable process, and it dictates how the system will handle overdue invoices for each vendor. If the vendors involved in a transaction or migration have different dunning procedures, the system cannot process the transaction correctly.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Vendors: Determine which vendors are involved in the error. You may need to check the vendor master data for the specific