Use Postman Tool to Retrieve Records in Dynamics CRM
Use Postman Tool to Retrieve Records in Dynamics CRM
Postman is one of the most popular API testing tools used by developers to interact with Dynamics 365 CRM and Dataverse Web APIs. It allows users to test requests, validate responses, troubleshoot integrations, and retrieve CRM data without writing application code.
By connecting Postman to Dynamics 365 using OAuth authentication, developers can retrieve records, create data, update information, and test custom integrations efficiently.
Why Use Postman with Dynamics 365?
- Test Web API requests
- Retrieve Dataverse records
- Validate integrations
- Troubleshoot API issues
- Explore CRM data structures
Prerequisites
- Dynamics 365 environment
- Azure App Registration
- Client ID
- Tenant ID
- Postman application
- Dataverse API permissions
Configure OAuth Authentication
Open Postman and configure OAuth 2.0 authentication.
Grant Type:
Authorization Code
Auth URL:
https://login.microsoftonline.com/{TenantID}/oauth2/v2.0/authorize
Access Token URL:
https://login.microsoftonline.com/{TenantID}/oauth2/v2.0/token
Retrieve Records Using GET Request
Use a GET request to retrieve records from Dataverse.
GET https://yourorg.crm.dynamics.com/api/data/v9.2/accounts
This request retrieves Account records from Dynamics 365 CRM.
Retrieve Specific Columns
Use the $select query option to retrieve only required fields.
GET /api/data/v9.2/accounts? $select=name,accountnumber
Filter Records
Use OData filters to retrieve specific records.
GET /api/data/v9.2/accounts? $filter=statecode eq 0
This returns only Active Account records.
Important: Always include the Authorization token and required headers when making requests to the Dataverse Web API.Required Headers
Authorization: Bearer Token Accept: application/json Content-Type: application/json OData-MaxVersion: 4.0 OData-Version: 4.0
Common Use Cases
- API testing
- Integration validation
- Data retrieval
- Debugging Web API calls
- Performance testing
- Dataverse exploration
Best Practices
- Use environment variables in Postman.
- Protect Client Secret values.
- Retrieve only required columns.
- Apply filters to reduce payload size.
- Use pagination for large datasets.
Key Takeaways
- Postman simplifies Dynamics 365 API testing.
- OAuth authentication is required.
- Web API allows direct access to Dataverse data.
- OData queries improve performance and flexibility.
- Essential for Dynamics 365 developers and integration specialists.