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

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According to the latest government circular, business households are facing a major shift from a lump-sum tax system to a declaration-based tax system. Instead of paying a fixed monthly tax, every sales transaction must now be recorded, invoiced electronically, and fully declared. This creates considerable difficulties for online shop owners, retailers, and business households – those accustomed to simpler processes now facing a host of new tasks: issuing invoices for each order, tracking revenue in detail, adjusting invoices when goods are returned, and ensuring accurate declarations to avoid legal risks.
The pressure is especially high for those who sell across multiple channels – offline in stores, online through 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 issue invoices for all transactions. Doing it manually is completely impractical, prone to missed orders, data errors, and incredibly time-consuming – time that should be focused on sales and business development.
GTG CRM was created to address these very challenges. It's not just a typical sales software, but a comprehensive management system that helps retailers automate most complex tasks – from consolidating orders from all channels in one place, centralized inventory management, to automatic electronic invoicing and tax filing support. With GTG CRM, you'll minimize administrative workload, avoid errors in tax filing, and have more time to focus on what matters most: sales and customer service.
Are you selling on Shopee, TikTok Shop, Lazada, Facebook, your own website, and even an offline 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, and contact phone number. This is where shippers will pick up goods, and the system will automatically update inventory after each shipment.

Each product is managed by a unique SKU code. This is especially important when you sell on multiple platforms – if the same SKU code is used, the system understands it to be the same product, ensuring accurate inventory synchronization across channels. You'll never again experience overstocking.

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

See also: Easier order management with features from GTG CRM
One of the most complicated situations in invoice reporting is when a customer returns goods. For example, a customer buys 3 products but only keeps 2, returning 1. If done manually, you have to access the electronic invoicing system, create an adjustment invoice, and re-enter the data – which is prone to errors and time-consuming.
GTG CRM automatically handles all of this. When you update an order with a returned product, the system automatically generates an adjustment invoice with the correct figures and updates the inventory. You don't need to do anything extra.

See also: Easier order management with features from GTG CRM
GTG CRM is the perfect solution for all retailers, from those just starting out online to established shops with multiple sales channels. In the context of increasingly stringent tax regulations, having an automated sales management and invoicing system is not only a competitive advantage but also a necessity for sustainable and legally compliant business operations. Let GTG CRM help you focus on what matters most: business growth and customer care.


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