A multi-channel sales management and automated electronic invoicing solution for retailers and online shop owners in the context of tax declaration transformation.


Automatically sync orders from Shopee, TikTok Shop, Lazada, Facebook, websites, and offline stores into a single interface.

Create and manage multiple warehouses, accurately synchronize inventory across sales channels using unified SKUs.

Automatically create electronic invoices immediately after confirming goods out of stock, complying with new tax declaration regulations.

When a customer returns products, the system automatically creates an adjustment invoice and updates inventory accurately.
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According to the latest government circular, business households are facing a significant transition from the lump-sum tax regime to the declared tax regime. Instead of paying a fixed monthly tax, all sales transactions must now be recorded, electronic invoices issued, and fully declared. This creates considerable difficulties for online shop owners, retailers, and business households who are accustomed to a simple process but now have to deal with a series of new tasks: issuing invoices for each order, tracking detailed revenue, adjusting invoices for returns, and ensuring accurate declarations to avoid legal risks.
This pressure is even greater for those selling across multiple channels – offline in their stores, online on their websites, and on e-commerce platforms like Shopee, TikTok Shop, and Lazada. They have to manage hundreds of orders from various sources, track inventory for each channel, prepare goods for delivery, and also issue invoices for all these transactions. Doing this manually is impossible, leading to missed orders, inaccurate data, and significant time loss – time that should be spent focusing on sales and business development.
GTG CRM was created to solve these exact challenges. It's not just an ordinary sales software, but a comprehensive management system that helps retailers automate most complex tasks – from consolidating orders from all channels into one place, managing centralized inventory, to automatically issuing electronic invoices and supporting tax declarations. With GTG CRM, you will reduce administrative burdens, avoid declaration errors, and have more time to focus on what matters most: selling and customer care.
Are you selling on Shopee, TikTok Shop, Lazada, Facebook, your own website, and also in your physical store? GTG CRM automatically synchronizes all orders from these channels into a single interface. No need to open 5-6 different tabs, no worries about missed orders or confusion between platforms.

GTG CRM allows you to create and manage multiple warehouses with detailed information: address, person in charge, contact phone number. This is where the shipper will pick up the goods, and the system will automatically update inventory after each shipment.

Each product is managed by a unique SKU. This is especially important when you sell on multiple platforms – if the SKU is the same, the system understands it's the same product, helping to accurately synchronize inventory across channels. You will never oversell your available stock again.

This is the key feature that helps you comply with the new declared tax regulations. GTG CRM supports automatic invoice issuance for orders from Shopee, TikTok Shop, and Lazada immediately after you confirm shipment. You no longer need to manually go to each platform to issue invoices.

Read more: Easier order management with features from GTG CRM
One of the most complex situations in declarations is when customers return items. For example, a customer buys 3 products but keeps 2 and returns 1. If done manually, you have to go into the electronic invoice system, create an adjustment invoice, re-enter the figures – very prone to errors and time-consuming.
GTG CRM automatically handles this task as well. When you update an order with returned items, the system will automatically generate an adjustment invoice with accurate figures and update the inventory. You don't need to do anything extra.

Read more: Easier order management with features from GTG CRM
GTG CRM is the perfect solution for all retailers, from those just starting out in online business to shops already operating across multiple channels. In the context of increasingly stringent tax regulations, having an automated sales management and invoice issuance system is not just a competitive advantage, but a necessary requirement for sustainable and lawful business operations. Let GTG CRM help you focus on what matters most: business growth and customer care.
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Increase potential customer numbers

70%
Reduce content creation time

25%
Boost ROI for advertising campaigns

30%
Increase customer conversion rate

60%
Reduce business operating costs
Helps retailers focus on business, not administrative procedures
GTG CRM Team
GTG CRM










