How To Fix CNV_20100392 - Parameter CNV_20100_NO_N_TO_1_NO_SUMUP is set for the package

CNV_20100392 - Overview

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 392

• Message text: Parameter CNV_20100_NO_N_TO_1_NO_SUMUP is set for the package

What causes this issue?

The program found, that the parameter CNV_20100_NO_N_TO_1_NO_SUMUP is
set to X. Furthermore no merges of G/L accounts/cost elements and no
chart of accounts merge is present.

System Response

The system will initialize all duplicate processing indicators. This
will improve the performance of the conversion.
Nevertheless the risk of an abortion during phase <ZK>CONVERSION </>is
also slightly higher. Such an abortion can occur if a given G/L
account/cost element is mapped to an interval value, but the interval
value itself is no existing G/L account/cost element.

How to fix this error?

Information

Procedure for System Administrators

The parameter must explicitely be set via transaction CNV_PARAMS for the
active package in the execution system.
By default the parameter is initial, meaning that the duplicate
processing indicators are not initialized even if no merges are present
according to the mapping.

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_20100392 - Details

• The SAP error message CNV_20100392, which indicates that the parameter CNV_20100_NO_N_TO_1_NO_SUMUP is set for the package, is related to the SAP Conversion and Migration tools, specifically in the context of data migration processes.
  
  Cause:
  This error typically arises during data migration when the system detects that the configuration parameter CNV_20100_NO_N_TO_1_NO_SUMUP is set. This parameter is used to control how data is processed during the migration. When it is set, it may prevent the system from performing certain operations that involve summarizing or aggregating data from multiple records into a single record. This can lead to issues if the migration process expects to handle data in a way that is incompatible with this setting.
  
  Solution:
  To resolve this error, you can consider the following steps:
  
  
  Check Parameter Settings: Review the settings for the parameter CNV_20100_NO_N_TO_1_NO_SUMUP. You may need to change this parameter to allow for summarization if your migration process requires it.
  
  
  Adjust Migration Logic: If changing