Message type: E = Error
Message class:  CNV_20211_CHECK - Messages for check functions (company conversion) 
Message number: 139
Message text: Participating companies do not use EC-CS
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The SAP error message CNV_20211_CHECK139 indicates that there is an issue related to the use of the Enterprise Controlling (EC) component, specifically the Consolidation (EC-CS) module. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the implementation of SAP S/4HANA.
Cause: The error message "Participating companies do not use EC-CS" suggests that the participating companies in the consolidation process are not set up to use the EC-CS module. This can occur due to several reasons:
Configuration Issues: The participating company codes may not be configured to use EC-CS. Missing Master Data: Required master data for the participating companies may be missing or incorrectly set up. Incorrect Migration Settings: The settings or parameters used during the migration process may not align with the requirements for EC-CS.
Solution: To resolve this error, you can take the following steps: Check Configuration: Ensure that the participating company codes are correctly configured to use EC-CS.
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