Do you configure BitTitan MigrationWiz, then move on?

Most engineers can get MigrationWiz running. Fewer engineers know how to configure MigrationWiz in a way that prevents an enterprise migration from becoming a 48-hour incident.

Validating endpoints before migration is the first step that separates great from good. Verifying the health of both source and destination tenants before the first batch is run catches authentication mismatches and permission gaps. It also catches throttling policies conflicts and throttling policy conflict before they appear in your item level error log.

The second is to filter mailbox items. By scoping migrations based on date ranges or folder types during pre-stage runs, migration time is reduced and delta pass volume is kept manageable. This scoping decision can mean the difference between an eight-hour cutover time and a three-hour window on a 200 mailbox project.

The third is bulk submission versus batching. Submitting all jobs simultaneously is the fastest and easiest way to trigger Microsoft tenant level EWS throttling. By dividing the population into waves and staggered start times, you can prevent the EWS budget from being completely exhausted at once.

Active error monitoring between passes is fourth. The MigrationWiz error report at the item level is not something that you check once migration is complete. You should review it after each pass, looking for patterns that may indicate a configuration issue rather than an isolated error.

Fifth, coexistence planning is done before cutover. It is important to test and define the interoperability of Teams, Calendar free-busy sharing and Mail flow routing between the source and destination tenants before the MX records are changed.

Hyper Care documentation comes in sixth. The support team can close tickets in just 20 minutes by using a post-migration reference that maps known MigrationWiz errors to resolution steps.

Which of these do you consider optional at the moment?

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