Most small businesses rely on several applications at once: a website form, a spreadsheet, an email inbox, an invoicing tool and a calendar. When these applications do not share information, staff copy the same details from one to another by hand. The work is repetitive, it takes time, and it leads to errors and missed follow-ups.
Most modern applications can exchange information directly through an API. Understanding the basics helps business owners make better decisions, whether they set up a connection themselves or work with a specialist.
What is an API?
An API (application programming interface) is a documented set of rules that allows one application to request information from another application, or to ask it to perform an action.
For example, when an invoicing tool automatically creates a customer record from a website form, an API is usually handling that exchange. The form sends the customer's details in a structured format, and the invoicing tool receives them and creates the record.
Three related terms appear frequently:
- Endpoint: a specific function an API provides, such as "list recent form submissions" or "create a new contact".
- Access key or token: a secret code that confirms an application is permitted to use an account. It should be protected in the same way as a password.
- JSON: the text format most APIs use to exchange data. It consists of labels and values, such as a name and an email address.
Webhooks and polling
There are two common methods for keeping applications up to date when something changes.
Webhooks send information as soon as an event occurs. When a new form is submitted, for example, the first application immediately sends the details to the second. Webhooks are fast, but both applications must support them, and some services include them only in paid plans.
Polling checks for new information at set intervals, for example every five minutes. The second application asks the first for any new records and processes them. Polling is slightly slower, but it works with nearly any application that offers an API.
Both methods are reliable when set up correctly. Clovvi's own website inquiry system uses polling because it meets the need at no additional cost.
How to plan a connection
Most of the important decisions are made before any technical work begins.
- Define the goal in one sentence. For example: "When a customer pays an invoice, mark the project as paid in the tracking spreadsheet." If the goal cannot be stated in one sentence, divide it into smaller connections.
- Review what each application offers. Check the help documentation for "integrations", "API" or "webhooks". Many common applications already provide built-in connections.
- Consider the simplest option first. Built-in integrations and automation services such as Zapier, Make or n8n can handle many common connections without custom development.
- Specify the data to transfer. List each field and where it should go, for example "Customer name" in one application mapped to "Client" in another. Exclude any information the process does not require, particularly personal or sensitive data.
- Create a dedicated access key. Limit it to the permissions the connection needs, such as read-only access, and set an expiry date where the application allows it.
- Test with sample data. Use a test record rather than real customer information, and confirm that every field arrives correctly.
- Plan for errors. Decide what should happen if an application is unavailable, a field is empty or the same record is received twice. A well-designed connection skips duplicates and reports failures rather than stopping without notice.
- Document the setup. Record which applications are connected, where access keys are stored, who administers each account and when keys expire.
Security practices
Connections between applications are convenient, but each one is also a point of access to business data. The following practices reduce risk:
- Do not share access keys by email or chat, and do not store them in shared documents.
- Use a separate key for each connection, so that one can be disabled without affecting the others.
- Remove keys that are no longer in use.
- Choose applications that allow permissions to be limited for each key.
- Transfer only the data a process requires. Moving less personal information reduces the impact of any problem.
When to work with a specialist
Built-in integrations are sufficient for many simple connections. Specialist support is useful when a connection involves several steps, custom logic, sensitive information or applications without ready-made integrations.
Clovvi reviews the tools a business already uses, recommends the simplest reliable approach, and builds and documents the connection so the business understands how it works. Contact us about the applications you would like to connect, or read more about our software integration services.