> ## Documentation Index > Fetch the complete documentation index at: https://docs.upwell.com/llms.txt > Use this file to discover all available pages before exploring further. # Search Customer Payment Line Items > Search for customer payment line items based on specified criteria ## OpenAPI ````yaml /api-reference/openapi.json post /api/rest/customer_payment_line_items/search openapi: 3.1.0 info: description: >- Upwell is Accounts Receivable automation software for the logistics industry. We serve freight brokers, carriers, factors, and anyone who needs to get transportation invoices paid. Learn more at: - [Upwell.com](https://upwell.com) title: Upwell REST API version: 3.30.2 termsOfService: https://upwell.com/legal contact: name: Upwell url: https://upwell.com email: contact@upwell.com servers: - url: https://api.upwell.com description: Production server - url: https://staging.api.upwell.com description: Staging server security: [] tags: - name: Invoice Approval description: Endpoints for managing customer invoice approval workflow paths: /api/rest/customer_payment_line_items/search: post: tags: - Customer Payment Line Items summary: Search Customer Payment Line Items description: Search for customer payment line items based on specified criteria parameters: - description: >- Your API key will be used for authentication of the request. `Authorization: YOUR_API_KEY` in: header name: authorization schema: type: string - in: query name: limit schema: default: 10 type: integer - in: query name: offset schema: default: 0 type: integer requestBody: content: application/json: schema: properties: limit: default: 10 nullable: true title: Int type: integer offset: default: 0 nullable: true title: Int type: integer orderBy: default: {} items: type: object description: PaymentLineItemsOrderBy (simplified) nullable: true type: array where: default: {} description: >- Boolean expression to filter rows from the table "payment_line_items". All fields are combined with a logical 'AND'. nullable: true properties: _and: items: type: object description: PaymentLineItemsBoolExp (simplified) nullable: true type: array _not: type: object description: PaymentLineItemsBoolExp (simplified) _or: items: type: object description: PaymentLineItemsBoolExp (simplified) nullable: true type: array checkDate: type: object description: DateComparisonExp (simplified) checkOrAchNumber: type: object description: StringComparisonExp (simplified) createdAt: type: object description: TimestamptzComparisonExp (simplified) currency: type: object description: CurrencyCodeEnumComparisonExp (simplified) customer: type: object description: CustomersBoolExp (simplified) customerId: type: object description: StringComparisonExp (simplified) exchangeRate: type: object description: StringComparisonExp (simplified) fees: type: object description: IntComparisonExp (simplified) id: type: object description: StringComparisonExp (simplified) invoice: type: object description: InvoicesBoolExp (simplified) invoiceId: type: object description: StringComparisonExp (simplified) notes: type: object description: StringComparisonExp (simplified) payment: type: object description: PaymentsBoolExp (simplified) paymentId: type: object description: StringComparisonExp (simplified) paymentMethodType: type: object description: StringComparisonExp (simplified) sourceSystem: type: object description: StringComparisonExp (simplified) sourceSystemId: type: object description: StringComparisonExp (simplified) sourceSystemMeta: type: object description: JsonbComparisonExp (simplified) status: type: object description: StringComparisonExp (simplified) totalAmount: type: object description: IntComparisonExp (simplified) totalAmountWithFees: type: object description: IntComparisonExp (simplified) transactionDate: type: object description: DateComparisonExp (simplified) updatedAt: type: object description: TimestamptzComparisonExp (simplified) title: PaymentLineItemsBoolExp type: object type: object description: >- Query parameters can also be provided in the request body as a JSON object required: false responses: '200': content: application/json: schema: properties: customerPaymentLineItems: items: description: columns and relationships of "payment_line_items" nullable: false properties: checkDate: $ref: '#/components/schemas/date' checkOrAchNumber: nullable: true title: String type: string createdAt: $ref: '#/components/schemas/timestamptz' currency: $ref: '#/components/schemas/CurrencyCodeEnum' customerId: nullable: true title: String type: string exchangeRate: nullable: true title: String type: string fees: nullable: false title: Int type: integer id: nullable: false title: String type: string invoiceId: nullable: true title: String type: string notes: nullable: true title: String type: string paymentId: nullable: true title: String type: string sourceSystemId: nullable: true title: String type: string sourceSystemMeta: $ref: '#/components/schemas/jsonb' status: nullable: false title: String type: string totalAmount: nullable: false title: Int type: integer totalAmountWithFees: nullable: true title: Int type: integer transactionDate: $ref: '#/components/schemas/date' updatedAt: $ref: '#/components/schemas/timestamptz' title: PaymentLineItems type: object nullable: false type: array description: Responses for POST /api/rest/customer_payment_line_items/search components: schemas: date: nullable: false title: date type: string format: date description: A date string, such as 2024-02-03 (YYYY-MM-DD) timestamptz: nullable: false title: timestamptz type: string format: date-time description: >- A timestamp with timezone in ISO 8601 format, such as 2024-12-16T21:57:14.525733+00:00 CurrencyCodeEnum: enum: - AED - AUD - BRL - CAD - CHF - CNY - EGP - EUR - GBP - HKD - IDR - INR - JPY - KRW - MXN - MYR - NZD - QAR - SAR - SGD - THB - TRY - TWD - USD - VND - ZAR nullable: false title: CurrencyCodeEnum jsonb: nullable: false title: jsonb ````