Is Your Business Compliant with E-Invoices?
According to Decree 123/2020/ND-CP, all businesses and business households (HKD) with revenue exceeding 100 million VND/year are required to use e-invoices. If you are in a situation where:
- Using MISA only for issuing invoices: One software for invoices, another for inventory management, and customer CRM in Excel
- Managing inventory with Excel: One wrong line can cost millions, and inventory counts at the end of the month are constantly off
- 3 software for 3 tasks: MISA for invoices, Excel for inventory, notebook for customers, wasting time and prone to errors
- Multiple warehouses, multiple branches: Don't know which warehouse has stock and which needs replenishment
- Overlapping software costs: MISA 1-3 million VND/year + inventory management tools + separate CRM
Over 5.5 million business households in Vietnam are transitioning to e-invoices. Many businesses are still using fragmented solutions, with invoices in one place, inventory in another, and customers elsewhere.
GTG CRM - Invoices + Inventory + CRM + Accounting = 1 Unified Software
GTG CRM fully integrates e-invoices according to Decree 123, multi-branch inventory management, customer management CRM, and now also includes double-entry accounting according to VAS standards (TT200/TT133) - all on one platform. No need for a separate MISA, no need for separate Excel, no need for separate accounting software for core operations.
| Before using GTG CRM | After using GTG CRM |
|---|---|
| MISA/EasyInvoice for invoices | ✅ Integrated e-invoicing - compliant with Decree 123 |
| Excel for inventory management, manual inventory checks | ✅ Multi-branch inventory management, real-time stock levels |
| Notebook/phone for customer management | ✅ Professional CRM - complete purchase history |
| Separate accounting software for records | ✅ Integrated double-entry accounting - general ledger, P&L, balance sheet, VAT declaration (VAS) |
| 4 separate software, unlinked data | ✅ 1 system: orders → warehousing → invoices → accounting → CRM |
| No consolidated reports | ✅ Revenue, inventory, tax, P&L, balance sheet reports — real-time |
Compliance & Management Features
E-Invoices - Fully Compliant with Decree 123
GTG CRM comes with built-in e-invoicing features, fully meeting legal requirements:
- Create invoices from orders: When an order is completed → 1 click to create an e-invoice
- Automation: Set up workflows → successful delivery → automatic invoice generation → email to customer
- Correct format for the General Department of Taxation: Standard invoice templates, complete with tax codes, buyer information, and detailed goods
- Send invoices via email: Automatically send PDF invoices to customers immediately after issuance
- Storage & Search: All invoices are stored and easily searchable by number, date, or customer
- Generate tax reports: Monthly/quarterly invoice reports — for tax declaration
Multi-Branch Inventory Management - No More Excel

Accurate inventory management across multiple warehouses, in real-time:
- Multiple warehouses: Manage main warehouse, sub-warehouses, partner warehouses - each with separate stock levels
- Stock in/out: Create receipts, issue vouchers, transfer vouchers - complete documentation
- Automatic synchronization: When a new order arrives → inventory automatically decreases, no manual updates needed
- FIFO cost accounting: The system automatically calculates costs using the FIFO method - accurate for financial reporting
- Stock-out alerts: Inventory below safety threshold → system alerts immediately
- Inventory reports: View real-time inventory by warehouse, product, or time period
- Product codes/barcodes: Manage SKUs and barcodes for each product - easy lookup and reconciliation
Product Management - Product Hub
Professional product catalog management for all industries:
- Product catalog: Create and manage thousands of SKUs - name, code, selling price, cost price, images
- Product variations: Size, color, packaging - each variation has its own code and stock level
- Product groups: Categorize by department, brand, supplier
- AI assistance: AI for writing product descriptions, creating professional product images
Order Management - Order Hub
Manage orders from multiple sales channels in one place:
- Multi-channel sales: Orders from websites, Facebook, Zalo, e-commerce platforms - consolidated into one dashboard
- Batch processing: Confirm, pack, and create shipping orders for multiple orders simultaneously
- Inventory linking: Confirmed orders → automatic stock deduction → never oversell
- Invoice linking: Successful delivery → automatic e-invoice generation
Double-Entry Accounting According to VAS - Records within the Platform
GTG CRM provides double-entry accounting according to Vietnamese accounting standards VAS TT200/TT133 - you don't need separate accounting software for core operations:
- Chart of Accounts: Pre-built templates for Vietnam (and other countries), AI-assisted setup, CSV import/export, 1-click reset
- Journal Entries & Double-Entry Ledger: each transaction is a balanced Debit/Credit entry; full journal and ledger
- Accounting Periods & Posting Rules: automatically generate entries from orders, invoices, returns/refunds
- Flexible revenue recognition: based on invoice issuance (default) or delivery - configurable by business
- Financial Statements: Profit and Loss (P&L), Balance Sheet, VAT Declaration - view directly in the portal
- Accounting for returns/refunds & invoice cancellations: refunds, returns, invoice cancellations automatically generate correct entries (including partial reversal of cost of goods sold)
GTG CRM handles core accounting + VAT declaration according to VAS. For complete personal income tax/corporate income tax declarations or specialized manufacturing cost accounting, you may still need supplementary specialized accounting software. GTG CRM connects to the tax authority indirectly through e-invoice providers (S-Invoice/MISA).
Sales Website - Create in 10 Minutes
Need an online sales channel? GTG CRM has a built-in Website Builder:
- Drag-and-drop website creation: Homepage, product pages, shopping cart, payment - all included
- Product synchronization: Products from Product Hub automatically appear on the website
- Inventory synchronization: Sales from the website → inventory decreases immediately - synchronized with the main warehouse
- SEO optimized: AI for content writing, keyword optimization for Google
- Responsive: Automatically optimized for mobile, tablet, and desktop
CRM - Integrated Customer Management
Not just invoices and inventory — GTG CRM also helps manage customer relationships:
- Customer profiles: Name, Tax ID, address, purchase history, invoice history
- Segmentation: Wholesale customers, retail customers, agents — each group with its own pricing policy
- Accounts receivable: Track accounts receivable for each customer — know who owes how much and when it's due
- Email/Zalo outreach: Send quotes, order notifications, payment reminders automatically
Automation - Automate from Order to Invoice
Set up automated workflows to minimize manual tasks:
- Order → Warehousing → Invoice: a continuous flow — order confirmed → stock deducted → invoice created → email sent
- Low stock alerts: Inventory below threshold → automatically notify purchasing staff
- Payment reminders: Overdue invoices → automatically send email/Zalo reminders to customers
- Automated reports: End of day/week/month → automatically generate revenue and inventory reports
Comparison: GTG CRM vs MISA + Excel
| Criteria | MISA + Excel + Notebook | GTG CRM |
|---|---|---|
| E-invoices | ✅ MISA has it (but only invoices) | ✅ Yes + integrated with orders, inventory, CRM |
| Accounting (ledger, P&L, balance sheet, VAT) | ✅ MISA AMIS specialized (separate software) | ✅ Integrated double-entry accounting according to VAS — sufficient for core operations |
| Inventory Management | ❌ Manual Excel, prone to errors | ✅ Multi-warehouse, real-time, FIFO, barcodes |
| Customer Management | ❌ Notebook, not systematic | ✅ Full CRM — history, accounts receivable, engagement |
| Linking Orders→Inventory→Invoices | ❌ No — manual entry required in 3 places | ✅ Automatic: orders → stock deduction → invoices |
| Multi-channel Sales | ❌ Each channel managed separately | ✅ Website + e-commerce platforms + Zalo/FB — one place |
| AI Assistance | ❌ None | ✅ AI for writing descriptions, creating images, chatbot for customer service |
| Consolidated Reports | ❌ Must be compiled manually from multiple sources | ✅ Real-time reports: revenue, inventory, tax |
| Sales Website | ❌ Requires separate rental | ✅ Built-in Website Builder |
| Cost | 1-3 million VND/year for MISA + other tools | From 199K VND/month (Basic package) — all-inclusive |
Who Should Use GTG CRM?
Business Households (HKD)
Revenue over 100 million VND/year → mandatory e-invoices. GTG CRM is a simple, affordable, and sufficient solution: - Easy invoice issuance, no accounting knowledge required - Basic product and customer management - Free to start - 36,888 credits enough for 3,000 invoices
Retail / Wholesale Stores
Manage products + inventory + orders + invoices — all in one: - Multiple product variations (size, color, packaging) - Multi-branch inventory — real-time synchronization - Automatic invoices upon sale - Online sales website to expand channels
Distributors / Agents
Manage multiple warehouses, multiple agents, complex accounts receivable: - Multi-warehouse management: main warehouse, branch warehouses, agent warehouses - Track accounts receivable for each agent — automatic payment reminders - Warehouse transfer slips between branches - Revenue reports by channel, by agent
E-commerce Sellers Needing Invoices
Selling on Shopee, Lazada, TikTok Shop - required to issue invoices: - Synchronize orders from e-commerce platforms - Automatic invoice issuance upon order completion - Synchronized inventory across platforms - Legal compliance - secure your business
Get Started in Just 3 Steps
| Step | Action | Time |
|---|---|---|
| Step 1 | Register for a free account — receive 36,888 credits immediately | 2 minutes |
| Step 2 | Set up invoices: enter business information, Tax ID, invoice templates | 10 minutes |
| Step 3 | Add products, start selling + issuing invoices + managing inventory | Immediately |
36,888 Free Credits = Immediate Compliance, No Cost
When you register for GTG CRM, you'll receive 36,888 free credits — enough for:
| Feature | Usage Count | Equivalent To |
|---|---|---|
| E-invoice issuance | ~3,000 invoices | 3-6 months for small businesses |
| Inventory management | ~3 months of use | Full inventory entry, issue, and count |
| Sending order notification emails | ~1,000 emails | Sending invoices + order confirmations to customers |
| AI writing product descriptions | ~500 descriptions | Professional product catalog |
| AI chatbot for customer inquiries | ~500 chat sessions | Answering price inquiries, automated ordering |
| Sales website | 1 full website | Expand online sales channels |
No credit card required. No commitment. Comply with the law today.
Pricing for Businesses
| Package | Price/month | Credits/month | Suitable for |
|---|---|---|---|
| Free | 0 VND | 36,888 credits (one-time) | Try all features |
| Basic | 199,000 VND | 80,000 credits | HKD, small shops — basic invoicing + inventory |
| Startup | 449,000 VND | 192,600 credits (+7%) | Small businesses needing full invoicing + inventory + CRM |
| Growth | 639,000 VND | 275,000 credits (+10%) | Medium-sized businesses, multiple branches, needing multi-warehouse + AI |
| Professional | 1,029,000 VND | 448,000 credits (+12%) | Large businesses, multi-channel, full features + priority support |
Conclusion
Adopting e-invoicing according to Decree 123/2020/ND-CP not only helps businesses comply with legal regulations but is also a crucial step in standardizing business processes. However, if data remains scattered across multiple software and Excel, businesses will continue to lose time and be prone to operational errors.
GTG CRM solves this problem by integrating e-invoicing, inventory management, order management, and customer CRM into a single system. When all data is connected, businesses can monitor operations more clearly, reduce manual tasks, and operate more efficiently.
If you are looking for an e-invoicing compliant solution that also manages your entire sales operation, GTG CRM is the simple choice to start with.
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