#migration 11 articles

• CreateCopyJobs with MoveButKeepSource keeps version history, timestamps and authorship — and how to actually prove itgotchas / rest-apiThe server-side Copy and Move job preserves all versions, Created/Modified and Created By/Modified By, leaves the source in place, and is callable from the browser under delegated auth; omitting AllowSchemaMismatch is…
• CreateCopyJobs: the library root is refused, progress logs are handed out once, and JobWarning is not a failuregotchas / rest-apiPassing a document library's root folder URL to CreateCopyJobs fails with HTTP 500 "Null value for source item" while a subfolder URL copies the folder with its content; several file names containing the hash sign…
• StorageMetrics lies two ways — all zeros, or plausible numbers from an older stategotchas / rest-apizero = not calculated, but non-zero can be stale (261 files / 3.1 GB vs real 794 / 9.5 GB); trust it only when TotalFileCount exactly matches the files you counted
• A copy job reports "finished" before the target shows every file – verify after the target settles, and read authors with $expandgotchas / rest-apiAfter CreateCopyJobs reports JobState 0, the target's /items can still miss hundreds of files for a while; re-read until two reads match, and compare authors via $expand on /items, not siteusers
• A file's time is not its item's time – a copy job carries the item time, and ListItemAllFields returns dates in the web's zone without "Z"gotchas / rest-apiTimeCreated/TimeLastModified of a file can differ from the item's Created/Modified by seconds or years; copy jobs carry the item time, so compare items – and read them from /items(id) (UTC), because ListItemAllFields…
• Copy jobs fed with file URIs: the folders you pre-create carry your account and today's date – and the TaxCatchAll warning is just image tagsgotchas / rest-apiA CreateCopyJobs job that gets folder URIs carries folder metadata, a job fed with file URIs needs existing target folders, and folders created with AddUsingPath show the running account and the creation time until you…
• Migrating list items with original authors, dates — and their version historygotchas / listsCopy and Move does not do lists, but REST does the job item by item — AddValidateUpdateItemUsingPath takes Author, Editor, Created and Modified at creation (one call, one version), version history can be replayed with…
• Office files change their content hash when you PATCH metadata — property demotiongotchas / graphMetadata PATCH and copy jobs rewrite Office, .msg and .htm file bytes; key change detection on lastModifiedBy, never compare sizes exactly
• Renaming your SharePoint domain (contosoltd.sharepoint.com to contoso.sharepoint.com)guidesScheduling a tenant rename on a fresh tenant – checking the name is free, adding the matching .onmicrosoft.com domain the right way, the 24-hour scheduling floor (error -772), what -WhatIf and the status output look…
• Reverse-engineering Plumsail Forms apps for migration or auditguidesWhere the JSON definitions, custom JS, and hosting web parts live; a read-only extraction routine and the client-side patterns (dummy-item pages, UI-only security, race conditions) to flag before a migration
• Root site swap refuses hub sites, and any site Publishing ever touchedgotchas / toolingInvoke-SPOSiteSwap rejects a source or target that is a hub site or associated with one, and rejects a source where the Publishing feature was ever activated — not just currently; unregistering a hub leaves children…