Fixed – CRM service call returned an error: An error has occurred when retrieving metadata for CRM entity ‘table’: The source argument contains duplicate keys – Dataverse/ Dynamics 365 / SSIS


Recently, while trying to retrieve OptionSet Metadata using the KingswaySoft SSIS Toolkit, an error occurred stating that the source argument contains duplicate keys. This error occurred in the UAT and Production environments but not in the Dev environment. To resolve this issue, the stringmap table was queried to get the required details.


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