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I will setup shopify pos sync square pos fix inventory sync payment gateway toast pos
Samuel W.
About this gig
Selling in-store and online but your inventory never matches? Payments failing at checkout? I set up and integrate Shopify POS and Square so your retail store and ecommerce run as one clean system with zero sync errors.
What I will do for you:
- Complete Shopify POS or Square account setup and configuration
- Product upload and catalog organization with variants and pricing
- Payment gateway setup and testing
- Inventory sync between your physical store and online store
- Tax configuration and receipt setup
- Troubleshooting errors, frozen screens, and failed integrations
Why store owners choose me:
Most POS problems come from poor initial setup. I configure everything correctly from the start so you avoid the errors that slow down sales and frustrate customers.
Clean setup, tested results, fast delivery.
Whether you are opening a new retail store, migrating from another POS, or fixing an existing system that is not performing, I deliver a setup that works the moment your first customer walks in.
Message me before ordering so I can confirm exactly what your store needs.
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
Get to know Samuel W.
Samuel W.
Efficient Service, Client Smiles Delivered
- FromGermany
- Member sinceMay 2026
- Avg. response time1 hour
Languages
German, Spanish, English
I build and fix technical things most developers won't touch, Rork AI apps with broken backends, Shopify POS systems that won't sync, Stripe integrations that keep failing, and high-converting Shopify stores built specifically for the German market.
I work with founders and store owners who have a working idea but a broken setup. Whether it's Supabase backend configuration, Square POS payment gateway issues, inventory sync errors.
My focus: niche platforms, specific problems, real fixes.
Message me with your issue before ordering and I'll tell you straight whether I can solve it.
My Portfolio
FAQ
Do you work with both Shopify POS and Square or just one?
I work with both. If you are deciding between the two, message me before ordering and I will recommend the better fit based on your store type, volume, and whether you sell online as well as in person.
Can you sync my Shopify POS inventory with my online Shopify
Yes. Inventory sync between your physical Shopify POS and your online store is included in the Standard and Premium packages. This eliminates overselling, stock mismatches, and manual updates across your sales channels.
Can you fix my existing Shopify POS or Square setup that has errors?
Yes. I diagnose and fix payment failures, inventory mismatches, product upload errors, tax misconfiguration, and integration issues on both platforms. Message me with your specific problem before ordering so I put you in the right package.
Can you upload my full product catalog into Shopify POS or Square?
Yes. Basic covers up to 15 products. Standard covers up to 50 products with variants, pricing, and categories. Premium covers up to 100 products with full catalog structure and inventory tracking. Message me for larger catalogs.
Can you set up Square or Shopify POS for multiple store locations?
Yes. Multi location inventory and staff permission setup is included in the Premium package. I configure each location separately and ensure inventory updates correctly across all your points of sale.
Do you handle payment gateway setup and testing?
Yes. Payment gateway configuration and live testing is included in all three packages. I make sure your checkout works correctly for card payments, contactless, and where applicable digital wallets before I close the order.
