> ## Documentation Index > Fetch the complete documentation index at: https://docs.streamlinedpayments.com/llms.txt > Use this file to discover all available pages before exploring further. # Create customer group ## OpenAPI ````yaml /api-reference/openapi.yaml post /customer_groups openapi: 3.0.3 info: title: Streamlined API description: > Access customers, customer applications, customer groups, products, payouts, invoices, transactions, and deposit links programmatically through this API, and receive webhooks when deposit links change. All requests must be authenticated with an API key. version: 1.6.0 license: name: Proprietary url: https://streamlinedpayments.com/terms servers: - url: https://api.staging.streamlinedpayments.com/api/v1 description: Sandbox - url: https://api.streamlinedpayments.com/api/v1 description: Production security: - AppIdAuth: [] ApiKeyAuth: [] tags: - name: Customers description: Create, update and delete the businesses you sell to. - name: Customer applications description: >- List the applications your customers submit, and approve them. Approving can also set net terms and export the customer to Shopify. See [Approve customer applications](/guides/customer-applications). - name: Customer groups description: >- Organize customers into groups and manage who's in each one. A group can be linked to a Shopify B2B company. - name: Customer files description: Upload and manage files attached to a customer. - name: Customer addresses description: Manage a customer's addresses and choose their default billing address. - name: Orders description: Create orders, add and remove line items, and schedule them. - name: Invoices description: Create invoices from orders, then list, look up and update them. - name: Transactions description: List transactions and look one up. - name: Payouts description: List payouts, including pending ones, and look one up. - name: Products description: >- Create and update the products and services you sell, import them in bulk, and merge duplicates. - name: Deposit links description: Collect money from a customer before an invoice exists. - name: Webhooks description: >- Register HTTPS endpoints to receive events when something changes. See [Webhooks](/guides/webhooks) for signatures, retries and delivery guarantees. paths: /customer_groups: post: tags: - Customer groups summary: Create customer group operationId: createCustomerGroup requestBody: required: true content: application/json: schema: type: object required: - customer_group properties: customer_group: type: object required: - company_name properties: company_name: type: string net_terms: type: integer nullable: true enum: - 0 - 7 - 10 - 15 - 30 - 45 - 60 - 90 description: > Payment terms in days that cascade to all member customers on update. 0 = Due on receipt. null = inherit from merchant default. responses: '201': description: Customer group created content: application/json: schema: $ref: '#/components/schemas/CustomerGroupDetail' '401': $ref: '#/components/responses/Unauthorized' '422': $ref: '#/components/responses/ValidationError' components: schemas: CustomerGroupDetail: type: object properties: customer_group: $ref: '#/components/schemas/CustomerGroupFull' CustomerGroupFull: description: >- Group fields with inline customers array. Returned by show, create, and update. allOf: - $ref: '#/components/schemas/CustomerGroupSummary' - type: object properties: customers: type: array description: Member customers (uuid + company_name only). items: type: object properties: uuid: type: string format: uuid company_name: type: string Error: type: object properties: error: type: string message: type: string ValidationError: type: object description: >- Standard validation error envelope. Use for any 422 unless richer per-row detail is needed (see RowValidationError on /products/import). properties: errors: type: array items: type: string CustomerGroupSummary: type: object description: >- Lightweight group fields. Used in list responses; does NOT include the inline customers array (use show or /members for member detail). properties: uuid: type: string format: uuid company_name: type: string net_terms: type: integer nullable: true enum: - 0 - 7 - 10 - 15 - 30 - 45 - 60 - 90 net_terms_label: type: string nullable: true number_of_customers: type: integer total_open_balance_amount: type: integer statement_url: type: string created_at: type: string format: date-time updated_at: type: string format: date-time responses: Unauthorized: description: Authentication failed content: application/json: schema: $ref: '#/components/schemas/Error' examples: AuthenticationRequired: value: error: Authentication required message: >- API endpoint requires authentication. Please provide valid X-App-Id and X-Api-Key headers. InvalidCredentials: value: error: Invalid credentials message: >- The provided API credentials are invalid. Please check your X-App-Id and X-Api-Key values. ValidationError: description: Validation failed. content: application/json: schema: $ref: '#/components/schemas/ValidationError' securitySchemes: AppIdAuth: type: apiKey in: header name: X-App-Id description: App ID for authentication ApiKeyAuth: type: apiKey in: header name: X-Api-Key description: API Key for authentication ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.