Contact person: Business Client

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Location: Lausanne, Switzerland

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I run a Shopify only store and manage my companies' stock in MarketMan (which is also connected to my physical shops). Right now the two systems don’t talk to one another, so every sale forces a manual update on both sides. I need a small middleware application (script, micro-service, or app—whichever is most efficient) that automatically keeps them in sync.

Core sync actions I need
• Product quantities
• Price changes
• New products

The flow is straightforward: when an order lands in Shopify, the tool should push the quantity change to MarketMan in real time (webhook preferred). MarketMan is my single source of truth, so any subsequent edits inside MarketMan—stock counts, new SKUs, or price adjustments—must immediately update the corresponding items in Shopify. If a SKU exists in MarketMan but not in Shopify, the tool should create it on Shopify with all relevant fields populated.

There are no existing integrations or middleware in place, so the solution will start from a clean slate. Feel free to leverage Shopify’s REST or GraphQL Admin API, MarketMan’s public API, and a lightweight queue or cron job for reliability. High-level deliverables:

1. Working codebase with clear setup instructions (language and framework are your choice).
2. Secure credential handling for both APIs.
3. Log or dashboard that shows sync success/failure for audit purposes.
4. Short hand-off session or screencast so I can deploy and maintain it myself.

Acceptance will be based on a live test where I:
• Place an order in Shopify and watch MarketMan adjust inventory.
• Manually change a product’s count, price, and name in MarketMan and see those updates reflect in Shopify within the agreed interval.

Keep the implementation lean, reliable, and well-documented so future tweaks are easy." (client-provided description)