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  1. APPS
  2. Purchases
  3. Purchase Backdate | Purchase Order Backdate | PO Backdate v 17.0
  4. Sales Conditions FAQ

Purchase Backdate | Purchase Order Backdate | PO Backdate

by TSync ERP
Odoo

$ 15.96

v 17.0 Third Party
Apps purchases are linked to your Odoo account, please sign in or sign up first.
Versions 17.0 18.0 19.0
You bought this module and need support? Click here!
Availability
Odoo Online
Odoo.sh
On Premise
Odoo Apps Dependencies • Discuss (mail)
• Inventory (stock)
• Invoicing (account)
• Purchase (purchase)
Lines of code 791
Technical Name ts_purchase_backdate
LicenseOPL-1
Versions 17.0 18.0 19.0
  • Description
  • Manifest
  • License

Purchase Order Backdate Pro

Advanced confirmation backdate management for Purchase Orders, Receipts, Stock Moves, Product Valuation, and Vendor Bills in Odoo.

Odoo 17.0 Ready Community & Enterprise Fully Automated SQL-Optimized

Key Features

Complete control over your purchase workflow dates and valuation consistency.

PO Backdate Confirmation

Specify a custom confirmation backdate directly on your RFQ/PO, replacing the default confirmation timestamp upon approval.

Backdate Remarks

Log a reason/remark with each backdate, and choose in configurations to make remarks optional or strictly mandatory.

Automatic Receipt Sync

Propagates confirmation backdates automatically to incoming shipments (receipts), stock moves, and individual move lines.

Accounting Alignment

Ensures associated Vendor Bills, Journal Entries, and Journal Items are backdated to the exact transaction date.

Stock Valuation History

Aligns stock valuation layer records with the backdate, keeping inventory asset valuations fully accurate.

Bulk Mass Assignment

Select multiple purchase orders from the tree list view and assign backdates and remarks in bulk using a single wizard.

Workflow & Step-by-Step Guide

Visual walkthrough of configurations and backdating process in Odoo.

Step 1

Enable Purchase Backdating Settings

Navigate to Purchase -> Configuration -> Settings. Scroll to the Purchase Backdate Settings block and check Enable Backdate For Purchase Order. This allows users to input custom dates when creating RFQs or confirming orders.

Enable Purchase Backdate Settings
Step 2

Set Backdate on Purchase Order

When creating or editing a Purchase Order / RFQ, you will see a new Backdate field. Simply select your desired date and time. This date will replace the default order confirmation date.

Set Backdate on Purchase Order
Step 3

Activate Remarks & Mandate Reasons

To ensure auditing accountability, go to settings and check Enable Remark For Purchase Order. You can also tick Remark Mandatory For Purchase Order to force users to provide a reason for the backdate before saving or confirming.

Configure Remarks settings
Step 4

PO Form with Active Remarks

With remarks enabled, the PO form displays a Backdate Remarks field. If mandatory, saving the PO without a remark will trigger Odoo's validation checks, blocking the action and highlighting the field.

Purchase Order Form with Remarks
Step 5

Configure Document Propagation

To automatically pass the backdate down to subsequent operations, enable Bill Has Same Backdate and Receipt Has Same Backdate in settings. This guarantees that your receipts and vendor bills inherit the same backdate.

Configure propagation settings
Step 6

Valuation & Product Move Tracking

When incoming shipments are validated, the module backdates the receipt's date done, move dates, move line dates, and the related Stock Valuation Layer history records. This maintains proper valuation sequence for accounting metrics.

Inventory Valuation Move History
Step 7

Vendor Bill Syncing

Generating a Vendor Bill for the backdated Purchase Order propagates the date and remarks. The bill's Invoice Date and Accounting Date are updated automatically upon posting, keeping journals and invoices perfectly aligned.

Vendor Bill Date Syncing
Step 8

Bulk Selection in Purchase Orders List

With Mass Assign Backdate enabled in configurations, users can select multiple Purchase Orders or RFQs from the tree list view, click the Actions menu, and select Mass Assign Backdate.

Bulk Selection for Mass Assign
Step 9

Empty Mass Assign Backdate Wizard

Choosing the option opens an empty Mass Assign Backdate popup where users can specify the date and remarks to be applied across the selected orders.

Mass Assign Wizard empty popup
Step 10

Input Batch Dates & Remarks

Enter the desired backdate and remarks to be applied. Click Apply, and Odoo will begin processing batch assignments across all chosen documents.

Mass Assign Wizard filled popup
Step 11

PO Dates Mass Assignment Success

After batch processing, all selected Purchase Orders successfully show the custom backdate (e.g. May 3, 12:32 PM) as their official Confirmation Date and Expected Arrival.

PO Mass Assignment Success
Step 12

Receipt Dates Mass Assignment Success

In addition to the POs, all associated Receipts (Stock Pickings) automatically reflect the custom backdate on their Scheduled Date, Effective Date, and Backdate fields.

Receipt Mass Assignment Success

Business Benefits

  • Maintain highly accurate historical purchase histories
  • Avoid manual database adjustments or complex Excel corrections
  • Ensure inventory assets valuation fits the correct periods
  • Prevent accounting date mismatches on Vendor Bills
  • Audit-ready logs with mandatory remarks reasons

Technical Details

  • Compatible with Odoo 17.0 Community & Enterprise
  • Standard Odoo extension, clean module architecture
  • ORM + SQL Hybrid execution for maximum performance
  • Includes automatic Odoo Environment Cache Invalidation
  • Clears and syncs all stock.picking, stock.move, account.move, and stock.valuation.layer records

Need Help or Customization?

Our team at TSync ERP is here to help you get the most out of your Odoo installation. Feel free to contact us for support, feedback, or custom feature requests.

Email: tsodooerp@gmail.com
Developer: TSync ERP
Website: www.tsyncerp.com
Availability
Odoo Online
Odoo.sh
On Premise
Odoo Apps Dependencies • Discuss (mail)
• Inventory (stock)
• Invoicing (account)
• Purchase (purchase)
Lines of code 791
Technical Name ts_purchase_backdate
LicenseOPL-1
Odoo Proprietary License v1.0

This software and associated files (the "Software") may only be used (executed,
modified, executed after modifications) if you have purchased a valid license
from the authors, typically via Odoo Apps, or if you have received a written
agreement from the authors of the Software (see the COPYRIGHT file).

You may develop Odoo modules that use the Software as a library (typically
by depending on it, importing it and using its resources), but without copying
any source code or material from the Software. You may distribute those
modules under the license of your choice, provided that this license is
compatible with the terms of the Odoo Proprietary License (For example:
LGPL, MIT, or proprietary licenses similar to this one).

It is forbidden to publish, distribute, sublicense, or sell copies of the Software
or modified copies of the Software.

The above copyright notice and this permission notice must be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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