Doubles after the 2026 connector change come in two kinds: the same order posted twice, and one invoice number used for two different orders. Both throw off sales and tax, and both are easier to fix once you have the full list.
It lists orders missing from the books, posted twice, or posted with a different total or tax, plus the income accounts your sales went to. Files stay in your browser. It's a check, not accounting advice.
Compare the two copies of an order. A different number prefix, transaction type, memo or paid status usually shows which app created each one.
Merchants report this since the September 2026 update (Shopify App Store reviews). Sort the posted sales by number and look for numbers with different customers or amounts. It doesn't change totals, but it does break customer statements and audit trails.
It lists orders missing from the books, posted twice, or posted with a different total or tax, plus the income accounts your sales went to. Files stay in your browser. It's a check, not accounting advice.
How did you first notice orders posted twice, and how many were there by then?
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