If the migration failed or stop in the middle, it must be possible to re-run the migration from this half-migrated repository. In other words it means that if you run a second time a process (like Update Primary Type) on a configuration, it should no break, it just should do nothing because everything is already in a good state.

Here listed all the processes / script that modify the configuration, we must check that if we run one of those a second time on the same piece of config nothing change and nothing break:

• PathChangesImpactingID
• TemplatesAndParagraphsToPagesAndComponents
• RenameDialogsAndChangeInDialogsMap
• PreProcessSTKTemplates
• TransformSTKTemplates
• TransformSimpleTemplates
• MigrateTemplateScripts (it can be disable)
• UpdateExtends (OK)
• UpdateWebsitePrimaryType (OK)
• UpdateMetaDataTemplateId (OK)
• TransformSTKWebsites (OK)
• RemoveTemplateToPrototypeRedundancy
• RemoveClassFromSTKSiteThemes
• TransformExtends
• ExtraSTKTasks
• ExtraFormTasks
• ExtraShopTasks
• ResourcesExtraTasks
• PURExtraTasks
• ChangeReferencesToExtends
• PostMigrationProcessing