Customily + merchOne: US and EU Fulfillment for Personalized Orders at Scale

Quick answer: For Customily sellers who need a production and shipping partner for US and EU orders, merchOne connects through a direct API integration inside the Customily dashboard under POD Integrations. Once linked, every personalized order routes from Customily to merchOne automatically – the print file is generated, sent, and production begins without manual intervention. merchOne is a print-on-demand manufacturer specializing in high-quality wall art and home decor, produced in-house at four facilities: Columbus (US), Latvia, Poland, and Germany, with combined production capacity of 2.5 million products per day and a 95% on-time shipping rate.

Key Takeaways

• Four in-house facilities: Columbus (US), Latvia, Poland, and Germany – 2.5 million products per day combined, consistent quality standards across all regions.
• US domestic production from Columbus: no customs delays or cross-border fees for US customers; predictable domestic shipping timelines.
• EU local production: three facilities cover the full EU market; EU orders fulfill from within the region, eliminating cross-border fees and accelerating delivery.
• Extended peak-season cut-offs: during Q4, Mother’s Day, Valentine’s Day, and Father’s Day, merchOne extends production cut-offs so customers can order later and still receive in time.
• 71 products available inside Customily across Wall Decoration, Home Decor & Accessories, Apparel, and Pet Products.
• File preparation matters: 300 DPI minimum, correct print area dimensions per product size, physical sample before each new product launch.

Why Customily sellers choose merchOne for fulfillment

For Customily sellers, fulfillment quality plays an important role in the customer experience, especially when every order includes personalized details. merchOne is a strong fulfillment partner because its production facilities are owned and operated in-house. Printing and quality control are managed directly by merchOne, helping maintain consistent standards across different regions.

This consistency is especially valuable for personalized products. Whether a customer orders a canvas in the US or in Europe, the product is produced according to merchOne’s quality standards and product specifications at the relevant facility. For sellers, this helps create a more reliable experience as order volume grows, particularly during busy gift seasons when customers expect their personalized products to arrive correctly and in good condition.

merchOne also supports regional fulfillment across both the US and Europe. This allows sellers to serve customers in both markets through one fulfillment partner, while reducing the risk of customs-related delays. As a result, sellers can offer a more consistent product range and delivery experience without needing separate fulfillment setups for each region.

merchOne’s production infrastructure

merchOne operates four in-house production facilities. SLA is 2 business days for canvas and poster products, and 3 business days for other product types. During Q4, Mother’s Day, Valentine’s Day, and Father’s Day, merchOne extends production cut-off dates – allowing sellers to offer competitive delivery promises during the final days of each gift window.

What products are available in the Customily-merchOne catalog?

Inside Customily, 72 merchOne products are available for direct import and personalization across Wall Decoration, Home Decor & Accessories, Apparel, and Pet Products.

How to connect merchOne as a fulfillment partner in Customily

The integration is set up inside the Customily dashboard under POD Integrations. Full setup takes approximately 5 minutes. Once connected, the order flow runs automatically: customer personalizes, Customily generates the print file, order routes to merchOne via API, merchOne produces and ships, tracking syncs to the store. Each integration requires a dedicated merchOne store – sellers with multiple Customily storefronts need one merchOne store connected per storefront.

1. Open the Customily dashboard and navigate to POD Integrations.
2. Select merchOne from the provider list.
3. Authenticate with your merchOne store credentials.
4. The merchOne catalog loads inside Customily’s product builder.
5. Pick the products to be listed.
6. Build or apply personalization templates using Customily’s Design Studio.
7. Link each Customily design to the corresponding product in the storefront.
8. Run a test order before publishing.

How to prepare files for production

300 DPI minimum.

Design files submitted below 300 DPI produce visible quality reduction at edges, particularly on large wall decoration formats – canvas, acrylic print, metal print. Use merchOne’s exact print area dimensions for each product size. Upscaling an undersized file amplifies the problem.

Color mode.

Files accurate on screen in RGB may shift when printed in CMYK. Running a physical sample before publishing is the standard way to catch those differences. A sample at base production cost is significantly cheaper than reprints triggered by customer complaints.

DPI warning in Customily.

For products that accept customer photo uploads, enable the DPI warning in Customily’s settings – it flags low-resolution images before an order is submitted. The setting is off by default and must be turned on per product.

Physical samples for every new product.

A physical sample confirms that what Customily’s live preview displays is what merchOne’s production outputs. Order one per new product before the first real customer order goes live.

How to scale personalized product sales through merchOne

For Customily sellers growing volume through merchOne, four structural decisions compound positively over time. Aligning product launches with the gift calendar is the highest-leverage one: photo canvases, custom mugs, personalized blankets, and name-print apparel cluster around Mother’s Day, Father’s Day, Valentine’s Day, and Christmas. merchOne’s extended peak-season cut-offs across all four events support competitive delivery promises through the final days of each window.

Using Customily’s conditional logic on products with multiple options reduces incorrect personalization data in orders, directly affecting the reprint rate. Configuring surcharges for premium personalization options (star maps, AI effects, premium font packs) before launch is simpler than retrofitting pricing afterward. Documenting a no-returns policy for custom merch sets accurate expectations before the purchase rather than after it.

How merchOne supports back-to-school fulfillment timing

Back-to-school is the third peak fulfillment window of the year for personalized product sellers, behind Q4 and Mother’s Day. The US back-to-school and college season generates approximately $41.5 billion in retail spending annually (National Retail Federation). Configure Customily personalization templates and run test orders by late June, publish listings and confirm sample quality in early July, and have the full lineup live before mid-July to capture K-12 back-to-school demand. College move-in demand extends through August – listings live by mid-July cover both peaks.

Of the 71 merchOne products available inside Customily, Classic Mug and Magic Mug serve teacher gifts; Canvas and Poster serve dorm room wall art; Premium Pillow and Premium Blanket serve college move-in gifts; and the full apparel range serves class-of-year T-shirts and hoodies. merchOne’s Columbus facility fulfills US orders domestically – no customs delays and predictable shipping timelines for sellers making delivery promises to US families before the school year starts. At 2.5 million products per day across four in-house facilities, production timelines hold during the volume spikes back-to-school campaigns generate.

Frequently Asked Questions

Which countries does merchOne ship to?

merchOne fulfills orders for US and EU customers from its four in-house facilities. US orders ship from Columbus, Ohio – domestic production with no customs delays. EU orders fulfill from Latvia, Poland, or Germany, covering the full EU market with regional production.

How long does merchOne take to produce a personalized order?

SLA is 2 business days for canvas and poster products, and 3 business days for other product types. During peak seasons – Q4, Mother’s Day, Valentine’s Day, and Father’s Day – merchOne extends production cut-off dates to support holiday delivery windows.

What happens if a print file has an issue?

A file that fails technical specifications may be flagged before production begins. For quality issues identified after production, merchOne handles them through its standard quality and support process. Running a physical sample before publishing each new product is the most effective way to identify file issues in advance.

How do you order a sample from merchOne?

Place a test order through the Customily-merchOne integration with the product configured exactly as it will appear to customers. Samples are available at base production cost. One sample per new product is the standard practice before launching a personalized listing.

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