A Customer 360 API provides teams with a unified view of customer data across systems, enabling them to personalize experiences, resolve issues quickly, and make smarter decisions.

In this video demo, we’ll walk through how to build a Customer 360 API using Celigo’s low-code API Builder. You’ll see how to combine data from multiple sources into a single, composable API (without writing complex code) and deliver it to internal teams in minutes.

This Customer 360 API is modular, reusable, and system-agnostic. It unifies data from Salesforce and Snowflake using separate lookup steps, then exposes that data through a single, governed endpoint.

Use case: Unifying customer data

At ACME Chocolatiers, internal sales and support teams need quick access to customer data stored across multiple systems. Instead of calling each system individually or building custom connectors, they want a Customer 360 API that returns a unified customer profile using a simple input parameter: customerName.

Using a low-code API builder, this kind of composable API is quick to build and easy to maintain. The visual interface allows you to define request parameters, orchestrate logic across systems, and return a clean, governed response.

For more on how a Customer 360 API can align with your long-term API strategy, explore our strategic framework for full API lifecycle management.

How composable APIs deliver value across teams

This Customer 360 API does more than unify data — it becomes a reusable service that supports multiple workflows. Because it pulls from both Salesforce and Snowflake in a single response, it acts as a central integration layer for sales, support, and RevOps.

Here are just a few examples:

• Sales reps can access key CRM and transactional data directly in their CRM interface
• Support agents can use the API within tools like Zendesk to gain full customer context during a case
• RevOps teams can use it in dashboards or analytics platforms to enrich account profiles
• Developers can reuse the same Salesforce and Snowflake logic to build additional APIs faster

This is the power of composable APIs. You build once and reuse across multiple teams, systems, and use cases.

Build the Customer 360 API

Here is a breakdown of the key steps to easily build your own Customer 360 API>

1. Create and configure the API request
Start by creating the API, setting the name and version, and defining the HTTP method and URI. Add a query parameter, such as customerName, to retrieve data based on the input.

2. Define the API response schema
Configure both success and error responses using a JSON schema. This ensures a consistent response format.

3. Transform source data using the request parameter
In the transformation step, pass the customerName parameter downstream so it can be used to filter lookup queries.

4. Add lookup steps for Salesforce and Snowflake
Use one step to query Salesforce using SOQL for CRM data, and another to query Snowflake using SQL for transaction data.

5. Map and unify the response
Use the response node to map both sets of data into a single, clean, and unified response.

6. Test the API
Create a mock request and use a test tool or Postman to call the endpoint. Add customerName, authenticate, and verify the 200 response.

7. Add validation
Optionally, add input validation to check for required parameters and return structured errors for missing fields.

Why this approach supports scalable API strategy

This is not just a point-to-point solution. It’s a composable API that’s easy to scale across use cases, partners, and teams.

Because it is built in a governed, low-code platform, it also supports key elements of a scalable API strategy, including:

• Reusability and modularity
• Unified governance and security
• Support for multiple integration patterns
• Easy maintenance with visual logic and version control

This composable approach supports clean versioning, unified governance, and consistent API delivery across environments. To scale your strategy effectively, it’s critical to use a platform that manages the full API lifecycle — from design to deployment.

Learn more about Celigo’s API Management solutions for scalable reuse, observability, and control.

A unified platform for building and scaling composable APIs

Composable APIs thrive when built on a platform that supports the full API lifecycle (from design to deployment). Celigo enables teams to build, secure, socialize, and monitor APIs directly within a low-code integration environment, eliminating the need for custom code or external tools.

By creating and exposing APIs through flows, teams embed governance and reusability into every integration. APIs become modular, governed assets that are easy to maintain and aligned with business logic.

This composable approach enables organizations to respond more quickly to changing requirements, onboard partners more efficiently, and scale integrations with consistency and control.

Build once. Reuse everywhere.

With Celigo’s low-code API Builder, teams can quickly build composable APIs that unify customer data across systems, without writing complex code. Visual tools and modular logic reduce time-to-value, improve data accessibility, and support a scalable Customer 360 strategy.

Ready to see it in action? Get a demo and learn how to streamline API development with built-in governance and reuse.