How To Fix CNV_20900186 - Participating vendors have different Reconciliation account (LFB1-AKONT)

CNV_20900186 - Overview

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 186

• Message text: Participating vendors have different Reconciliation account (LFB1-AKONT)

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 XYZ. (This setting is determined by the indicator
Reconciliation Account in General Ledger. (This setting is determined by
the indicator 'Reconciliation Account in General Ledger'<ZH>, </>field
<ZH>LFB1-AKONT</>).
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 Reconciliation Account in General Ledger of the old vendor
record for which priority indicator is set.</> Make sure to evaluate the
impact of this decision - for example regarding potential inconsisten
cies 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_20900186 - Details

• The SAP error message CNV_20900186 indicates that there is a discrepancy in the reconciliation accounts for participating vendors in a migration or data transfer process. This error typically arises during data migration activities, such as when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  
  Cause:
  The error occurs when the system detects that the participating vendors (usually in a vendor master data context) have different reconciliation accounts assigned to them. In SAP, a reconciliation account is a general ledger account that consolidates the balances of all sub-ledgers (like accounts payable). If the vendors involved in a transaction or migration do not share the same reconciliation account, 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 causing the issue. You can do this by checking the vendor master data for the reconciliation accounts assigned to each vendor.
  
  
  Standardize