> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://help.booksgpt.ai/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # Drop a bill into Copilot Drag a vendor bill onto the chat. BooksGPT reads it and opens the right review. || Nothing is created, posted or paid from a dropped file until you review it and click the green button. ## Drop the file 1. Click the BooksGPT logo, or **Home**, in the left sidebar. 2. Drag the PDF or photo over the ask box. A green dashed frame appears around the chat, with the label **Drop a bill, receipt or statement**. Let go. 3. Or click **+** next to the ask box, then **Add files**, then **Receipt**, and pick the file. ![The chat with a file held over it: a green dashed frame around the chat, the ask box glowing, and the label Drop a bill, receipt or statement](https://booksgpt.ai/help/copilot-drop-a-bill/drop-frame.png) * PDF, JPG or PNG. Up to 10 files in one drop. A CSV, TSV or Excel file is treated as books to import, not as a bill. * The chat keeps the file with your receipts first, so the upload stops at 10 MB. **Upload Bill** on the [Bill Inbox](https://app.booksgpt.ai/go/bills/inbox) sends a PDF straight to the bill review, so a PDF there can be 20 MB. Photos are 10 MB either way, and both read at most 10 pages. While it reads, the bubble says **Opening the file**, **Going through the pages**, **Reading the document**, then **Matching it to your books**. ## What the bubble says * **BILL**, reading **Vendor bill**: a bill you owe, with the vendor, number and total. **Review bill** opens the review. * A stock, freight or storage bill adds a second card under that bubble. It shows the **Source amount**, and **Review matches** opens the inventory review. Start there. * When Copilot reads that review, the card also shows **Charges**. It adds **Selected**, **Waiting on a lot** and **Allocated** when each is above zero. When the review has a Bill, the card links **Bill**, with the number when there is one. * The card states **This review is blocked.** with **Needs attention**, **The cost update for this review failed.** with **Cost update failed**, **Costs are updating from this review.** with **Updating costs**, or **This document is still being read.** with **Processing**. * **DOCUMENT**, reading **Document to review**: confirm on the review page that your business owes the vendor. * **INVOICE**: an invoice your business issued. Nothing was created or sent. **Review invoice** opens that review. See [Create an invoice draft from a PDF or photo](https://help.booksgpt.ai/en/article/create-an-invoice-draft-from-a-pdf-or-photo-1ajjxel/). * **RECEIPT**: something you already paid. **Save for review** on **Proposed entry** files a transaction that still needs review. It does not post. See [Receipts: upload, match, and your storage limit](https://help.booksgpt.ai/en/article/receipts-upload-match-and-your-storage-limit-hoh9ec/). * **BANK STATEMENT**: handed to the statement importer. Its card follows in the chat. Nothing is imported until you confirm there. See [Upload a bank statement](https://help.booksgpt.ai/en/article/upload-a-bank-statement-1xc0ly7/). ![The bubble for a vendor bill from Prairie Foods, with Review bill, and a second card showing the source amount and Review matches](https://booksgpt.ai/help/copilot-drop-a-bill/stock-bill-cards.png) ## A bill for stock A captured stock bill goes to the inventory review before the Bill is created. Ask how to make the Bill when the review has none. Copilot states the facts it has and that it cannot create the Bill from the chat. Finish the review on the page. 1. Click **Review matches**. Tick the lots, or click **Select ready lines**. 2. Click **Create Bill and update stock**. For freight or storage, click **Create Bill and allocate** and the amount. That opens **Review vendor Bill**. 3. Check the fields there, tick the confirmation if it asks, and click the green button. Inventory goes up by the Bill's net amount, and cost of goods sold is booked when you sell. Freight or storage split across lots is in [Split a freight or storage bill across your lots](https://help.booksgpt.ai/en/article/split-a-freight-or-storage-bill-across-your-lots-1nqbcmm/). ||| Opened **Review bill** first? The page says **Finish the inventory review before creating and posting this Bill.** Click **Review inventory targets in a new tab**. Tick the lots there and click **Create Bill and update stock** (or **Create Bill and allocate**). That tab then opens **Review vendor Bill**, ready to save. ## An ordinary bill **Review bill** opens **Review vendor Bill**, and **Create Bill draft** saves an unposted draft and does not move money. **Check before saving** lists what to compare with the original. See [Vendor Bill Inbox and matching bank payments to Bills](https://help.booksgpt.ai/en/article/vendor-bill-inbox-and-matching-bank-payments-to-bills-telync/). ## Find it later * Open **All pages** in the left sidebar, then click **Purchases** and **Bill Inbox**. The file is **Uploaded in BooksGPT**, with **Review Bill** beside it. * Stock, freight and storage bills also wait on **To review**. Open **All pages** in the left sidebar, then click **Inventory** and **[Landed costs](https://app.booksgpt.ai/go/landed-costs)**. ## Good to know * A packing list or bill of lading behind the invoice is usually read as part of that one bill. If the review's **Check before saving** says **This file contains more than one document. Split it and upload one Bill at a time.**, split it and upload the invoice on its own. Two bills in one file are not split. Upload them one at a time. Related: [Ask Copilot about inventory](https://help.booksgpt.ai/en/article/ask-copilot-about-inventory-1k44r77/), [Inventory costing and landed costs](https://help.booksgpt.ai/en/article/inventory-costing-and-landed-costs-1hk7hlr/).