How do I reconcile all our bank accounts for the first time?

1) Connect each company's Xero organisation on Settings → Xero Sync; the Bank page (Accounts → Bank, /accounts/bank-summary) reads every bank account of every connected organisation. 2) Open the Summary tab, pick the date window and press Refresh — one row per bank account, grouped by company, with opening, money in, money out and closing, and a group total pinned at the bottom. 3) Open the Bank Recon tab: every open statement line is placed in a bucket — Ready to confirm, Needs Xero entry, Only in Xero, Expected. 4) Work the Needs Xero entry lines: each carries a suggestion (pay a bill, receive against an invoice, a GL entry, a transfer, intercompany) and creating it posts the entry to the right Xero organisation, pre-filled. 5) Mark lines that need nothing as Not a problem, or Explained by…. 6) Give the final OK in Xero itself — Saral never claims Xero's green tick. 7) Back on Summary, switch the balance to Adjusted if statement lines are missing from Xero (upload them on Adjustments), then Preview, download or email the bank reconciliation from the output bar.