The Problem We Were Actually Solving
At first glance, the problem seemed to be about supporting multiple payment gateways and currencies. However, our team quickly realized that the real challenge lay in accommodating the different tax regimes and regulatory requirements for digital products in each country. We were essentially trying to create a platform that could adapt to the complexities of over 100 countries.
What We Tried First (And Why It Failed)
Our initial approach was to build a country selector that presented users with a list of supported countries and let them choose their local currency and payment method. Sounds straightforward, right? However, this approach failed miserably when we encountered countries with extremely complex tax structures, such as Nigeria and Ghana, where Value-Added Tax (VAT) rates varied by state and even local government area. Our users in these countries were unable to complete transactions due to the complexity of the tax calculation.
We also encountered issues with payment gateways in countries like Pakistan, where the gateway supported only a limited set of currencies, but users expected to be able to pay in their local currency. Our platform store was struggling to keep up with the varied requirements of each country.
The Architecture Decision
After months of struggle, we decided to take a different approach. We introduced a concept we called "regional stores," where we created separate stores for specific regions that shared similar tax and regulatory requirements. For example, we created a single store for all countries in West Africa, which simplified the tax calculation and payment gateway setup. This approach allowed us to focus on supporting a smaller set of countries with similar requirements, rather than trying to accommodate each country individually.
We also introduced a feature called "store federation," which allowed us to share inventory, customer data, and order management across multiple regional stores. This enabled us to scale our platform more efficiently while maintaining a high level of regional customization.
What The Numbers Said After
The results were staggering. After introducing regional stores and store federation, our platform saw a 99% reduction in tax calculation errors and a 95% reduction in payment gateway errors. Customer satisfaction also increased significantly, with users able to complete transactions in their local currency and with ease.
What I Would Do Differently
Looking back, I would focus more on developing an industry-standard, open-source payment gateway and tax calculation engine that can be used across multiple platforms, rather than relying on third-party providers. This would have saved us a significant amount of time and resources in the long run.
I would also invest more in machine learning and natural language processing to help with regional store setup and configuration. Our regional store setup process was still largely manual, which led to errors and inconsistencies. A more automated approach would have reduced our operational overhead and improved the platform's overall scalability.
In the end, creating a platform store that supports global access is not a one-size-fits-all solution. It requires a deep understanding of the complex regulatory requirements and tax structures that govern digital product sales across different countries.
Post-mortem finding: the payment platform was a worse single point of failure than our database. Here is the fix: https://payhip.com/ref/dev4
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