The term used to describe the process of building a Salesforce solution using coding is "custom development" or "customization."

Custom development refers to the practice of extending or modifying Salesforce's functionality by writing code. Salesforce provides several programming languages and tools for customization, such as Apex (a Java-like language), Visualforce (a markup language), and Lightning Web Components (a modern JavaScript framework).

When you engage in custom development, you can write code to create custom business logic, automate processes, build custom user interfaces, integrate with external systems, and more. This coding allows you to tailor Salesforce to your specific business requirements and extend its capabilities beyond the out-of-the-box features.

Custom development in Salesforce often involves leveraging the Salesforce platform's various APIs, including the SOAP API, REST API, and Bulk API, to interact with and manipulate data, perform calculations, and integrate with other systems.

It's worth noting that Salesforce also provides declarative development options, where you can configure and customize the platform using point-and-click tools, like Workflow Rules, Process Builder, and Lightning App Builder. However, when coding is necessary to achieve complex or highly specific functionality, custom development becomes the preferred approach.

In summary, custom development is the process of building a Salesforce solution using coding, allowing you to create tailored functionality and meet unique business requirements beyond what can be achieved through declarative customization alone.

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