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Businesses generate many documents every day, including sales orders, purchase orders, customer invoices, vendor bills, and employee payslips. Managing them separately can be confusing and time-consuming, especially when multiple documents belong to the same customer or supplier. Finding the correct document, making changes one by one, or sending multiple PDFs to a customer is not an efficient way to work.

That’s where the All-in-One Merge App in Odoo becomes a game-changer. It allows you to combine different documents into a single document — quickly, cleanly, and without errors. With just one click, you can merge multiple sales orders, merge purchase orders, merge vendor bills, merge customer invoices, or even merge employee payslips. This makes daily work faster and your business records more organized.

In this guide, we will explore how the merge app works, why it is useful, and how it can help your business save time and improve accuracy.

Why Merging Documents is Important

Imagine a customer places five small orders on the same day. If you send five separate sales order PDFs, it looks messy and unprofessional. Similarly, if you receive multiple purchase orders from the same supplier or many vendor bills for small amounts, tracking them becomes difficult.

Merging helps you:

• Reduce document clutter
• Avoid duplicate work
• Create a clean and complete document
• Improve customer communication
• Process accounting records faster
• Keep your Odoo database organized

Instead of managing many small documents, you combine them into a single, strong, final version.

All-in-One Merge: One App with Many Benefits

This app doesn’t do only one thing. It handles all primary business documents inside Odoo. Here are the powerful merging features included:

???? Merge Sale Orders

You can select multiple sale orders for the same customer and combine them into a single sale order. This is helpful when:

• The customer places several orders on different dates
• You want to send a single quotation
• You want to avoid multiple confirmation approvals

???? Merge Purchase Orders

Buyers often place repeated orders from the same supplier. Instead of confirming each PO separately, you can:

• Merge multiple POs
• Create one consolidated purchase request
• Clear communication with suppliers

???? Merge Customer Invoices

When a customer has multiple invoices pending, it is easier to:

• Send a single invoice with complete details
• Improve payment follow-ups
• Remove confusion for finance teams

This speeds up the payment process because the customer clearly sees what they owe.

???? Merge Vendor Bills

Accounting becomes much simpler when you can:

• Merge all small vendor bills into one
• Send combined settlement approvals
• Maintain clean vendor statements

This reduces errors during reconciliation and payment runs.

???? Merge Payslips

HR teams can merge employee payslips for record-keeping and approvals. It helps during payroll audits, bulk printing, or sending details to accounts.

How the All-in-One Merge App Works

The app is designed for non-technical users. You don’t need any coding knowledge, and you don’t need to configure anything. Once installed, the merge button appears in the required modules.

You simply:

1. Select the records you want to merge
2. Click the Merge button
3. Choose your settings (how to merge items, lines, totals, etc.)
4. Click Confirm

The app instantly creates a new merged document inside Odoo. The original documents also remain safe if you need them later.

Smart Merging Features Inside the App

The app offers several innovative options that make merging accurate and flexible:

✔ Merge only documents belonging to the same customer/supplier

✔ Combine product lines automatically

✔ Merge duplicate products into a single line

✔ Update quantities and totals automatically

✔ Keep all tax details correct

✔ Cancel or archive old documents (optional)

✔ Full tracking of merged output

You always get a clean result without manual editing.

Real-Life Use Cases — How Businesses Benefit

Here are some simple examples of how companies can use this app daily:

???? Retail & Wholesale Business

A customer orders products throughout the week. Instead of many sale orders → one merged sale order → one delivery, → one payment request.

???? Manufacturing

Multiple items purchased from the same supplier at different times. All purchase orders combined into one → better negotiation → stronger supply chain control.

???? Distribution & Logistics

The vendor sends multiple small bills. Finance merges bills into one → fewer payments → easier monthly accounting.

???? HR & Payroll

Year-end payroll reports need combined employee payslips → simple merging → instant export and print.

???? Finance Team

The customer has multiple overdue invoices. Merge all invoices → send one apparent demand → faster payment recovery.

Every department can save hours of manual work by using this one tool.

How It Improves Communication

When you send customers or suppliers a single document, they can understand the information more quickly.

Instead of:

"Please find attached four quotations."

You send:

"Here is your updated quotation with all requested items."

It gives your business a more professional image and makes approval easier.

Cleaner Database → High Odoo Performance

Too many documents in Odoo can slow down your system over time. Merging helps reduce unnecessary document counts while preserving the whole history. You end up with:

• Better storage management
• Faster searching
• Easier reporting
• Neater audit trails

Your Odoo instance performs more efficiently.

No Training Required — Anyone Can Use It

The best part is simplicity. Sales team, purchase team, HR, and accounts — everyone can merge documents with just one click. Even new employees can use it confidently without any support.

You do not need developers, technical settings, or complicated rules. The app works instantly after installation.

Conclusion

The All-in-One Merge App for Odoo is more than a small utility. It is a productivity booster for the entire company. From sales to finance to HR, every department benefits from:

• ✨ Faster workflows
• ✨ Fewer mistakes
• ✨ Professional documentation
• ✨ Clean data management
• ✨ Smooth customer & vendor communication

If your team handles multiple documents every day, then merging is not just helpful — it is necessary.

By efficiently combining orders, invoices, bills, and payslips, you improve the business experience for your team and your customers.