But this keeps showing up in our workflow: duplicate SKUs and mismatched tax codes when I import the daily 3,200-line POS CSV into NetSuite through Excel 365. Has anyone taken a short course or microlesson that boosted accuracy — not just 10-key speed — but things like better validation setups or review patterns? Ideally something I can do in 15–20 minutes on breaks that translates into fewer rework tickets.
I cut those by adding a 15‑minute Power Query pre‑check: import the CSV, run ‘Remove Duplicates’ on SKU, then ‘Merge’ to a tiny tax‑code master so mismatches return null and get a red‑flag column before the NetSuite upload — want me to share the merge keys and the single conditional‑format rule I use?
Building on @jawe900, set a Power Query left anti join to your tax‑code master so the query returns only mismatches, and add a quick Group By SKU > Count to surface duplicates — save as a template and your refresh becomes a 20‑second “bad rows only” check (like a bouncer for your CSV). This 15‑min walkthrough is enough to set it up: Merge queries overview - Power Query | Microsoft Learn; want a sample M snippet?
Quick win: add Data Validation on your import sheet — SKU and tax columns reference named lists, with a custom rule like =ISNUMBER(XMATCH([@Tax],tax_list)) so bad rows get stopped; pair it with a helper =COUNTIFS(SKU,[@SKU])>1 to filter duplicates in seconds (a bouncer catching fake IDs). If paste‑in bypasses the stop alert, use “Circle Invalid Data” or a tiny Office Script to apply checks after paste; here’s a 5‑minute primer: https://support.microsoft.com/en-us/office/prevent-invalid-data-entry-in-excel-with-data-validation-3d3d3ea8-7076-47b3-88f7-9901b3d076c0 — do you control the template you paste into?
I shaved off most repeats by staging an ‘errors‑only’ view with FILTER+LET — normalize item IDs with UPPER(TRIM()), then FILTER rows where COUNTIFS on that ID >1 or the tax lookup is NA; it took about 15 minutes to learn from this quick ref: https://support.microsoft.com/excel/filter-function. Small caveat: it’s 365‑only (older Excel needs Advanced Filter) — want the exact formula I use?