How Sweet Wink Fixed Retail–Wholesale Inventory Sync

About Sweet Wink

Sweet Wink is a modern children’s apparel and accessories brand based in New York, founded by the mother–daughter duo Wendi and Samantha. They are known to create joyful, whimsical, and high-quality pieces that make childhood feel magical.

Over the years, Sweet Wink has expanded into a full lifestyle brand known for its soft fabrics, sparkly designs, and playful collections that resonate with both kids and parents.

With a growing catalog of apparel, accessories, giftable items, and mix-and-match bundles, the brand serves customers through two Shopify stores: one for retail shoppers and another for wholesale boutiques.

This dual-store structure allows Sweet Wink to reach a wide audience while staying true to their vision of designing delightful, comfortable clothing for little ones, but also introduces a level of operational complexity behind the scenes.

Their catalog includes 10,000+ SKUs and more than 5,000 bundles, many of which overlap across both stores. Their orders are large and complex, often containing 100 to 400+ line items, with bundles made up of multiple components.

The Challenges Faced

As Sweet Wink scaled, their inventory management became increasingly difficult to control, not because of a lack of process, but because the structure of their business was inherently complex.

They were running two Shopify stores (retail + wholesale), and thousands of their SKUs existed on both. Any mistake or delay in syncing instantly created inconsistencies across the two stores.

Here’s where the difficulties began to show:

Extremely Large and Complex Orders

Wholesale orders often had 100–400+ line items, many of them bundles. Shopify struggled to process deductions accurately at this scale.

Managing 15,000+ SKUs including thousands of bundles

With thousands of overlapping products across retail and wholesale stores, even small sync delays created inaccurate stock levels.

Frequent Partial Fulfillments

Large orders couldn’t be shipped in one go. Shopify’s partial fulfillment handling caused incorrect deductions, especially for bundles.

Order Edits Breaking Sync

Quantity changes or item swaps after purchase led to unreliable recalculations of bundle components, resulting in mismatched inventory.

Bundle Components Not Deducting Correctly

Shopify often miscalculated bundle components—deducting partially, incorrectly, or not at all—especially inside big or edited orders.

Inventory Mismatches Between Retail & Wholesale Stores

Because the same products existed on both stores, any missed deduction instantly caused differences in available stock.

Heavy Manual Correction Work

The team spent hours each week fixing stock levels, adjusting bundles, and reconciling errors just to keep both stores aligned.

What This Caused

The growing volume of large orders, bundles, and overlapping SKUs didn’t just make Sweet Wink’s operations more complicated, it created a chain reaction of issues across their retail and wholesale stores.

Small syncing errors quickly escalated into larger problems that affected fulfillment speed, stock accuracy, and the team’s day-to-day workload.

• Stock mismatches between stores:
  Retail and wholesale stores often showed different quantities for the same product, making it hard to know what was truly available.

• Overselling during high-demand periods:
  When bundle components didn’t reduce correctly, items appeared in stock even though they were sold out.

• Bundles showing incorrect availability:
  Bundles showed as “in stock” even when one or more components were unavailable, leading to fulfillment delays.

• Slower fulfillment times:
  The team had to pause and manually check stock before shipping large orders, increasing turnaround time.

• Reduced trust in inventory data:
  With constant discrepancies, the team couldn’t rely on Shopify’s numbers for planning, reordering, or forecasting.

The Sumtracker Solution

To regain control of their inventory and fix the constant bundle sync issues, Sweet Wink needed a system designed for high-volume, multi-store, bundle-heavy operations.

Sumtracker provided the accuracy, speed, and reliability that Shopify alone couldn’t deliver, especially with the scale at which Sweet Wink operates.

• Accurate bundle component syncing:
  Sumtracker deducts every component of every bundle in real time, even inside large, complex orders with hundreds of line items.

• Instant syncing across retail and wholesale stores:
  Inventory updates happen immediately on both Shopify stores, keeping stock aligned at all times.

• Reliable handling of partial fulfillments:
  Whether an order is shipped in multiple batches or edited mid-way, Sumtracker recalculates deductions correctly.

• Support for large orders without inventory sync issues:
  Orders with 100–400+ line items now sync smoothly without delays, lag, or missed deductions.

• Stable operations for 10,000 SKUs and 5,000 bundles:
  The system is built to handle high SKU and bundle volumes without breaking or slowing down.

• Inventory management workflow built in:
  Sweet Wink also gained accurate landed cost tracking, purchase order management, and low-stock alerts, reducing reliance on spreadsheets and manual tracking.

The Impact

Conclusion

Sweet Wink’s fast growth made inventory management increasingly difficult across two stores, thousands of SKUs, and large, bundle-heavy orders. Their team needed a system that could keep up with their pace.

Sumtracker gave them exactly that with accurate bundle syncing, reliable multi-store updates, and smooth handling of complex orders.

With fewer errors, faster fulfillment, and almost no manual corrections, Sweet Wink can now focus on creating joyful products instead of fixing inventory issues.

Ready to eliminate inventory errors and streamline your operations like Sweet Wink?

👉 Try Sumtracker today

FAQS

How does Sumtracker help with bundle inventory?

Sumtracker deducts inventory at the component level, ensuring each part of a bundle reduces correctly, even in large orders, partial fulfillments, and edited orders.

Can Sumtracker sync inventory across two Shopify stores?

Yes. Sumtracker keeps Sweet Wink’s retail and wholesale stores perfectly aligned in real time, preventing stock mismatches and overselling.

Does Sumtracker support very large orders?

Absolutely. Sumtracker processes orders with 100–400+ line items instantly and accurately, without slowing down or missing deductions.

Did Sweet Wink see improvements immediately?

Yes. The results were visible from day one accurate bundle syncing, cleaner stock numbers, faster fulfillment, and no overselling.

Besides syncing, what other features did Sweet Wink use?

They rely on Sumtracker for landed costs, purchase orders, and low-stock alerts, replacing multiple spreadsheets and manual workflows.

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