| Event Id | 4002 |
| Source | MSExchangeMig |
| Description | Error writing GroupWise Schedule Plus message for user '<user name>' to IFF file. |
| Event Information | The calendar data for this GroupWise user could not be written to the migration files. Verify that disk space is available. Use the System Monitor and other utilities to measure memory usage and optimize performance. You may need to increase paging file size, or stop other running applications and remove unused files and applications from the server's disk. |
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