After the migration, you can compare the number and size of files in the source and destination by accessing the following URL:
- If the number of files is different after the migration, check if the files that are not in the destination failed in the migration. If the files are failed to be migrated, check the comments of failed files. After you fix the errors, rerun the migration job. If there are no records for these files, contact Support and provide the screenshots of these files and job ID to analyze the error.
- If the size of files is different after the migration, for example, the source file size is 10 MB, but the migrated file size is 100 MB, check the actual size of the source and migrated files in the source and destination libraries. Then, refer to the following instructions to resolve this issue:
- If the actual size of the source file is 10 MB, the actual size of the migrated file is 10 MB, but the migrated file size displayed in the destination **Storage Metrics** page is 100 MB, it may be an issue of Microsoft.
- If the actual size of the source file is 100 MB, the actual size of the migrated file is 100 MB, but the source file size displayed in the **Storage Metrics** page is 10 MB, it may be an issue of Microsoft.
- If the actual size of the source file is 10 MB but the actual size of the migrated file is 100 MB, it is an issue of Fly. Contact Support and provide the screenshots of version histories of the source and migrated files, and screenshots of the **Storage Metrics** pages of the source and destination by accessing the following URL to analyze the error:
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