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I'll set up system integration via API, turnkey

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Listing period14 daysuntil 27.11.2026
Posted29.08.2026
Views9917 in 14 days

About the service

Over several years working with integrations, I've seen dozens of companies where the warehouse, accounting software, and CRM live separate lives and don't communicate at all. The manager enters an order in CRM, then moves that same order to the warehouse system, and the accountant enters it again in their own program — and at each step there's a risk of error: wrong item code, duplicate shipment, forgotten invoice. I take on setting up data exchange between these systems via API so information transfers itself, without manual copying.

I start by analyzing what really needs to be synchronized: warehouse inventory, order statuses, invoice amounts, customer records. Then I design the exchange scheme — sometimes data needs to flow both ways, sometimes a one-way stream from one system to another is enough. I write code with error logging so if the connection breaks, you get a notification instead of finding out a week later from a customer complaint. Before delivery, I always run the integration on real test data and provide brief instructions on how everything works.

What the work includes:
— setting up data exchange between warehouse, accounting, and CRM in the necessary direction;
— automatic transfer of orders, inventory, and customer records;
— error notifications instead of silent failures;
— documentation so the team can make small changes independently.

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Olena T.Web programming
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