The Scenario
You're the procurement officer. It's three days before the payment run, and you have 60 open purchase orders in Zoho Books and 45 supplier invoices received this month. Someone on the finance team flagged that two vendors might have billed more than their POs authorised. You need to match every invoice against its PO and surface any line where the bill amount is more than 5% over.
The bad version:
- Export the PO list from Zoho Books as a CSV, open it in Sheets.
- Export the bills list separately, open that too.
- Write a VLOOKUP to match bill amounts to PO amounts by PO number.
- Discover that 8 of the 45 bills reference PO numbers with a different format than what Zoho Books exported, fix those manually.
- Add a formula to flag rows where the bill exceeds the PO by more than 5%.
The payment run doesn't wait for your VLOOKUP to work. And if a vendor overbilling slips through, the finance team finds out after the wire has already gone.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent that lives inside your Google Sheet. It fetches both the PO data and the bill data from Zoho Books and runs the matching logic in one step.
Fetch all open purchase orders from Zoho Books and write PO number, vendor name, PO date, and total amount into columns A through D; then for each PO number look up the corresponding bill in Zoho Books and write the bill amount into column E, then flag rows where the bill amount is more than 5% higher than the PO amount by writing OVER-BILLED in column F
What You Get
- Columns A through D: PO Number, Vendor Name, PO Date, PO Amount.
- Column E: Bill Amount matched to each PO (blank if no bill found).
- Column F: OVER-BILLED for any row where bill exceeds PO by more than 5%.
- Unmatched POs (no bill found) noted in column F as NO BILL.
What If the Data Is Not Quite Ready
Some bills reference PO numbers with a different prefix format
Fetch all Zoho Books open POs into columns A through D, then for each PO look up matching bills normalising the PO number format (strip leading PO- or ZB- prefix before matching), write bill amount into column E, and flag OVER-BILLED in column F where applicable
You need to see the specific line items that are overbilled, not just the totals
Fetch all Zoho Books open POs and their matching bills; for any PO where the total bill exceeds the PO amount by more than 5%, list each line item from both the PO and the bill side by side in columns A through H so the discrepancy is visible at the item level
Some vendors have multiple bills against a single PO
Fetch all Zoho Books open POs into columns A through D; for each PO, sum all associated bill amounts into column E; then flag OVER-BILLED in column F where the total billed amount exceeds the PO total by more than 5%
Full pre-payment-run check in one shot
Fetch all Zoho Books open POs, look up all associated bills, sum bill amounts per PO, flag OVER-BILLED where sum exceeds PO total by more than 5% and flag NO BILL where no bill exists, write vendor name and PO amount alongside each flag, and sort the output with OVER-BILLED rows at the top
The pattern: ask for the normalisation, the aggregation, and the flagging in a single prompt.
Try It
Get the 7-day free trial of SheetXAI and open a Google Sheet, then ask it to fetch your Zoho Books POs and bills, match them, and flag any overbilling before the payment run. See also how to bulk-create vendor credits or return to the Zoho Books integration overview.