You have multiple packages sharing the same data source, or you’re moving to Azure‑SSIS Integration Runtime (IR) where project‑level connections are mandatory.
| Property | Value | |----------|-------| | | SSIS‑181 (also appears as DTS_E_CONNECTIONMANAGERNOTFOUND ) | | Message | “The connection manager ‘ConnectionManagerName’ is not defined.” | | Component | Any data flow, execute SQL task, script task, or other component that references a ConnectionManager by name. | | Typical cause | The package’s runtime cannot locate a Connection Manager with the exact name that the component expects. This can be because the connection manager was removed, renamed, or lives in a different scope (project vs. package). | | When it appears | Design‑time validation, package load, or execution (both in SSDT/Visual Studio and on the SSISDB catalog). | SSIS-181
To troubleshoot the SSIS-181 error code, follow these steps: You have multiple packages sharing the same data
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The SSIS-181 error is a common issue that can occur when working with SSIS packages. Understanding the causes, symptoms, and solutions to this error can help developers and database administrators resolve the issue efficiently. By following best practices and troubleshooting steps, you can minimize the occurrence of the SSIS-181 error and ensure smooth package execution.
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