> ## Documentation Index > Fetch the complete documentation index at: https://creditor-documentation.debbiecollect.com/llms.txt > Use this file to discover all available pages before exploring further. # Add case vouchers > Add new case vouchers (e.g. unpaid invoices, reminder fees or deposits) to a customer. Based on the vouchers, the platform automatically determines whether to create a new case or add the vouchers to an existing case. ## OpenAPI ````yaml POST /v1/{tenantId}/customers/{customerId}/add-case-vouchers openapi: 3.0.1 info: title: Debbie Creditor API Docs description: >- The Debbie Creditor API is a RESTful interface allowing you, as a creditor, to programmatically send data to your debt collection partner and access your data in the platform. It provides predictable URLs for accessing resources, and uses built-in HTTP features to receive commands and return responses. This makes it easy to integrate with your own systems, for example your ERP or invoicing system. version: v1.0.0 x-logo: url: https://debbie-platform.github.io/creditor-api-docs/deb-logo.svg servers: - url: https://api.debbiecollect.com security: - bearerAuth: [] tags: - name: Customers description: Endpoints for interacting with customers - name: Files description: Endpoints for interacting with files - name: Voucher Type Ids description: >- ### Principals: | Type | id | | --- | --- | | Invoice (Faktura) | eb41e58e-fccf-419d-a771-cd5027fe6e87 | | Credit note (Kreditnota) | ef2cdc50-230f-4046-b1af-0f9c498dddd3 | | Final statement (Opgørelse) | 42385ae0-6846-425c-a793-8d47a3b190b5 | | On account invoice (Acontofaktura) | 2d101b6e-74f9-4a4d-9f8e-c7abe2264da0 | | Loan (Gældsbrev) | bf61f462-6d3c-42e8-a99a-852d4a664926 | ### Costs: | Type | id | | --- | --- | | Collection cost (Inkassoomkostning) | 07960de4-303d-4793-92da-3a8cfd5da1a1 | | Collection fee (Inkassogebyr) | 4c3ccbbf-0651-45b2-b37b-4fe736acfd7e | | Reminder fee (Rykkergebyr) | 3e51bf87-3c8f-4dd5-abd5-69417d113c89 | | Compensation cost (Kompensationsgebyr) | ed3e3d61-e1bc-4ee2-9166-adf2c41a2bbf | ### Interests: | Type | id | | --- | --- | | DK interest (Procesrente) | ca4af363-9925-436c-83d6-23b3db6ed5d2 | | Fixed interest (Fastrente) | 299dc393-1b71-4950-860f-8fb485036722 | | Yearly interest (Årlig rente) | 37db68dd-80be-40c7-8d2d-3619c793107f | ### Transactions: | Type | id | | --- | --- | | Deposit (Indbetaling) | c51f2f6a-8081-45ef-b52d-5e0569fdf12e | Your debt collection partner may also have defined custom voucher types. If you need a type that is not listed here, please reach out to them. externalDocs: description: Find out more about Debbie here url: https://debbiecollect.com paths: /v1/{tenantId}/customers/{customerId}/add-case-vouchers: post: tags: - Customers summary: Add case vouchers description: >- Add new case vouchers (e.g. unpaid invoices, reminder fees or deposits) to a customer. Based on the vouchers, the platform automatically determines whether to create a new case or add the vouchers to an existing case. operationId: add-case-vouchers-to-customer parameters: - in: path name: tenantId schema: type: string format: uuid required: true description: >- Id of your debt collection partner's tenant. You can find it on the API page in the creditor portal. - in: path name: customerId schema: type: string format: uuid required: true description: Id of the customer requestBody: description: List of new case vouchers content: application/json: schema: type: object properties: caseVouchers: type: array items: $ref: '#/components/schemas/NewCaseVoucher' required: - caseVouchers example: caseVouchers: - currency: DKK amount: -100000 referenceId: D12412347 text: J.no. 1234 date: '2024-05-28 00:00:00.000+01' dueDate: '2024-06-11 00:00:00.000+01' source: CREDITOR voucherTypeId: eb41e58e-fccf-419d-a771-cd5027fe6e87 required: true responses: '200': description: Successful operation content: application/json: schema: type: array items: $ref: '#/components/schemas/CaseVoucherAddedToCustomer' '401': $ref: '#/components/responses/UnauthorizedError' '422': $ref: '#/components/responses/UnprocessableContent' components: schemas: NewCaseVoucher: type: object properties: voucherTypeId: type: string format: uuid description: >- An id for the voucher type. A list of ids can be found on the Voucher types page. amount: type: integer description: >- Amount in base currency. For example 1.00 should be sent as 100. A negative amount (e.g. -100) represents a debt, while a positive amount (e.g. +100) represents a credit note or deposit. referenceId: type: string currency: $ref: '#/components/schemas/Currency' interest: type: number description: >- Used when the voucher is accumulating interest to specify the interest rate (yearly interest and compound interest). The number is in decimal, for example 0.1 would be an interest rate of 10%. date: type: string interestStartDate: type: string interestEndDate: type: string dueDate: type: string appendix: $ref: '#/components/schemas/File' description: The appendix is for pdf copies or similar for a case voucher. source: $ref: '#/components/schemas/CaseVoucherSource' uniqueId: type: string description: >- A unique id, that can be used to prevent creating the same case voucher twice. This id is unique at the tenant level, meaning that no two case vouchers can have the same unique id on the same tenant. referenceCaseVoucherId: type: string format: uuid description: The id of the voucher that this voucher is a child of. referenceVouchers: type: array items: $ref: '#/components/schemas/NewCaseVoucher' text: type: string description: >- Free text shown on the case voucher, for example a journal number or a short description. required: - voucherTypeId - amount - date - source - currency CaseVoucherAddedToCustomer: type: object properties: merged: type: boolean description: Whether the new case voucher was merged with an existing one caseId: type: string format: uuid description: Id of the case that the case voucher is added to caseVoucherId: type: string format: uuid description: Id of the case new case voucher Currency: type: string enum: - DKK - SEK - NOK - USD - EUR - GBP - CHF description: Currency File: type: object properties: fileName: type: string contentType: type: string fileId: type: string format: uuid required: - fileName - contentType - fileId CaseVoucherSource: type: string enum: - CREDITOR - COLLECTOR description: >- The source of the case voucher. "CREDITOR" if the case voucher is imposed by the creditor (typically from an ERP system). "COLLECTOR" if the case voucher is imposed by collector (debt collection agency). If it is a deposit it is a direct payment if set to "CREDITOR". responses: UnauthorizedError: description: Access token missing or invalid UnprocessableContent: description: Unable to process the contained instructions. securitySchemes: bearerAuth: type: http scheme: bearer description: >- Authentication with an API key can be done by using a bearer token in the Authorization header. This is done using the following format `Authorization: Bearer {token}`. API keys are issued and revoked directly from the creditor portal under Developers > API. ````