Odoo Documents and Approvals: Going Paperless without Losing Control

Paper rarely disappears in one go. It retreats into email attachments, shared drives and a scanner nobody wants to own, and each step makes a simple audit question harder to answer: who approved this bill, and where is the signed copy?

Odoo Documents tackles that by keeping files next to the records they belong to, with access rights, approvals and signatures in the same database. This guide covers the Documents app in Odoo 19 Enterprise, how bill digitization, approval rules and Sign fit around it, and the free route for businesses on Odoo 19 Community.

What Odoo Documents Does in Odoo 19

The Documents app works like a shared drive inside Odoo. The tree on the left offers All, Company, My Drive, Shared with me, Recent and Trash, and everything under Company follows the access rights set on each folder and file.

The feature that matters most is file centralization. When it is on for an app, the attachments of that app's records are filed into a dedicated folder automatically. For Accounting it cannot be switched off: Odoo creates a sub-folder for each journal type, such as Sales, Purchase and Bank, and tags each file with its journal. For HR, each employee gets a sub-folder, and files are tagged by type, such as Contracts and Payslips. In Odoo 19, HR can also create several folders for each employee.

Files keep their history too. You can manage versions, lock a file against changes, split or merge PDFs, add tags, link a file to any record and create shortcuts, so one file appears in several folders without being duplicated. In Odoo 19, the chatter on folders and files also records access right changes, shares and renaming. Odoo's Documents guide walks through each screen.

Getting Paper in without Retyping

Once a custom alias domain is configured, each folder can have its own email alias, so suppliers and staff can email files straight into the right place, optionally tagged and with an activity for whoever must act. In Odoo 19, an email without attachments sent to an alias becomes a file itself. When you need something from someone, such as a renewed trade license, use Request to create a placeholder with a due date and send reminders until the file arrives. Odoo 19 can also sort a folder's incoming files with an AI prompt, tagging or moving them, or creating records such as vendor bills.

Digitizing Vendor Bills from Inbox to Posted Bill

Vendor bills are where paperless pays back first. Odoo's document digitization uses optical character recognition (OCR) and artificial intelligence to read a bill and fill in a draft: vendor, bill reference, bill date, due date, recipient bank, currency, and the lines with quantities, prices and taxes.

There are two ways in. Bills emailed to the purchase journal's alias, vendor-bills@ followed by your alias domain by default, become draft bills automatically; that route accepts PDF and XML. JPEG images go through a Documents alias instead, and any file in the Finance folder can be turned into a vendor bill and sent for digitization.

A few settings decide how much control you keep:

• Automatic or on demand. In the Accounting settings, digitization can run on every bill or only on demand, from a button on the bill.
• Purchase order matching. In Odoo 19, Odoo looks for purchase order references anywhere in an imported bill, including line descriptions, and the Purchase Matching button pairs the bill with received order lines.
• Auto-post by vendor. With automatic digitization on, choose Always, Ask after 3 validations without edits, or Never on each vendor. Keep Always for trusted, regular vendors whose bills you would approve anyway.
• Duplicate warnings. Odoo 19 marks likely duplicates in red and possible ones in yellow, and leaves duplicates out of automatic posting.

Digitization is an In-App Purchase (IAP) service: each document uses one prepaid credit, while electronic bills with embedded XML are read without OCR credits. If a field comes back wrong, Odoo 19 lets you click the right text in the document preview to fill it. Odoo's digitization guide lists every recognized field.

Approvals and Signatures with a Full Audit Trail

Approval Rules on the Buttons That Matter

Studio approval rules put a named approver in front of any button, such as Confirm on a vendor bill. You choose approvers by user or by group, add a condition with the filter icon so the rule only applies above a threshold, and chain several steps in order. Exclusive Approval stops one person approving two steps on the same record, and approvers can delegate their rights until a set date while they are away.

When someone without approval rights clicks the button, Odoo shows an error and creates an activity for the approvers. Every decision is tracked in the record's chatter, ready for your auditor. Approval rules are built with Studio, and activating Studio may change your Odoo pricing plan, so check before you start. Our guide on when to configure, customize or write code explains where Studio fits. For purchase orders, the Purchase settings also offer a simpler approval step above a minimum amount, without Studio.

Signatures inside the Same Record

Odoo Sign sends documents for electronic signature from the Sign app or straight from a record, with the related customer added as a signer automatically. In Odoo 19 you can send several documents as one envelope, request a signature on any PDF in a record's chatter and import files from Documents. Templates can save fully signed documents into a chosen Documents folder with tags, and set how many days a request stays valid.

Once everyone has signed, the signed documents and a certificate of completion go to the requester and, for requests sent from a record, into that record's chatter. Signers can be asked to authenticate by SMS. Odoo's UAE page on Sign refers to Federal Decree-Law No. 46 of 2021 on Electronic Transactions and Trust Services and notes that some documents, such as wills, may still need a handwritten signature, so confirm with your legal adviser which of yours can be signed electronically.