significantly more on sales and marketing than we currently plan to spend in order to maintain or increase revenue from our customers. Such additional sales and marketing expenditures could adversely affect our business, results of operations, and financial condition. If we fail to continue to improve and enhance the functionality, performance, reliability, design, security, or scalability of our platform in a manner that responds to our customers’ evolving needs, our business may be adversely affected. The on-demand digital commerce and digital ordering markets are characterized by rapid technological change, frequent new product and service introductions, and evolving industry standards. Our success has been based on our ability to identify and anticipate the needs of our customers and design and maintain a platform that provides them with the tools they need to operate their businesses in a manner that is productive and meets or exceeds their expectations. Our ability to attract new customers, retain revenue from existing customers, and increase sales to both new and existing customers will depend in large part on our ability to continue to improve and enhance the functionality, performance, reliability, design, security, and scalability of our platform. Additionally, to achieve and maintain market acceptance for our platform, we must effectively integrate with new or existing software solutions that meet changing customer demands in a timely manner. As we expand our platform and services, and as the number of our customers with higher volume sales increases, we expect that we will need to offer increased functionality, scalability, and support, including to keep our platform, systems, and services secure, which requires us to devote additional resources to such efforts. To the extent we are not able to enhance our platform’s functionality in order to maintain its utility and security, enhance our platform’s scalability in order to maintain its performance and availability, or improve our support functions in order to meet increased customer service demands, our business, operating results, and financial condition could be adversely affected. We may experience difficulties with software development that could delay or prevent the development, deployment, introduction, or implementation of new modules and enhancements. Software development involves a significant amount of time, as it can take our developers months to update, code, and test new and upgraded modules, and integrate those modules into our platform. We must also continually update, test, certify, maintain, and enhance our software platform. We may make significant investments in new modules or enhancements that may not achieve expected returns. The continual improvement and enhancement of our platform requires significant investment and we may not have the resources to make such investment. Our improvements and enhancements may not result in our ability to recoup our investments in a timely manner, or at all. The improvement and enhancement of the functionality, performance, reliability, design, security, and scalability of our platform is expensive and complex, and to the extent we are not able to perform it in a manner that responds to our customers’ evolving needs, our business, operating results, and financial condition could be adversely affected. We currently generate significant revenue from our largest restaurant customers, and the loss or decline in revenue from any of these customers could harm our business, results of operations, and financial condition. For the year ended December 31, 2021, our 10 largest restaurant customers generated an aggregate of approximately 19 % of our revenue. Although these customers enter into long-term contracts with us, they may reduce or terminate their usage of our platform or decide not to renew their agreements with us. We have lost in the past, and we may lose in the future, one or more of our largest restaurant customers. While no such losses have been material to date, in the event that any of our largest restaurant customers do not continue to use our platform, use fewer of our modules, use our modules in a more limited capacity, or not at all, or if the volume of transactions processed on our platform declines, our business, results of operations, and financial condition could be adversely affected. Our business is highly competitive. We may not be able to compete successfully against current and future competitors. We face competition in various aspects of our business and we expect such competition to intensify in the future, as existing and new competitors, including some of our current ecosystem partners, introduce new solutions or enhance existing solutions that are directly competitive with our modules. Our platform combines functionality from numerous product categories, and we may compete against providers in each of these categories including white-label digital ordering solution providers, restaurant-focused POS platforms, aggregators that provide direct digital ordering solutions, and custom software providers. Our potential new or existing competitors may be able to develop solutions that are better received by customers or may be able to respond more quickly and effectively than we can to new or changing opportunities, technologies, regulations, or customer requirements. Some ordering aggregators sell solutions that are competitive with our core platform and they may become more aggressive in their sales tactics, including by bundling competitive solutions with their delivery or aggregator 21