What is the Tracking & Project Codes page for?

One project-code register and one view of the tracking categories across every Xero organisation in the group. A project code is minted here — code plus name is the tracking-option string pushed to Xero — and the Harmonisation tab shows each category and option per organisation, with a create, rename or archive in Xero where they differ. Duplicates resolves names that differ only by a space or a hyphen; Main Projects groups tracking options into the real projects reports roll up by. Every write to Xero is a button a person presses, confirmed first. You enter: A project code: code and name, the client company, the accounts company, year, VAT status, type and address — and which organisations to add it to as a tracking option; A new tracking category and the organisations to create it in; the canonical name a drifted category or option should carry; which spelling of a near-duplicate name to keep; Which tracking options belong to which main project, and which are unassigned. Saral fills: The matrix: every category and option per organisation, with Harmonised, In N of M, Name drift and Options differ badges, and how close each organisation is to Xero's limit of two active categories; Which options each project code already has in each organisation, and the near-duplicate families (names differing only by spaces or hyphens) across the group; The badge counts — options with drift, main projects with unassigned options — drawn only once their source has answered. It produces: Tracking categories and options created, renamed or archived in the organisations you choose, and a new project code pushed to them as a tracking option; The register the Projects module shows as its own (Projects → Register is the same component over the same routes), and the Main Projects grouping every project report rolls up by. Where the settings live: The Xero organisations in the columns are Settings → Data & integrations → Xero sync & coverage; the projects and tracking register that other modules read is Settings → Reference data, over the same options this page harmonises. The VAT status a project code carries is edited here for Accounts and on the Projects register for the commercial team — one row, two doors. The labour sites a worker checks in to are HR → Settings → Sites, not this register.