--- title: "POST /Invoices/{id}/send-invoice" method: POST path: "/Invoices/{id}/send-invoice" tags: ["Invoices"] --- # POST /Invoices/{id}/send-invoice `POST /Invoices/{id}/send-invoice` ## Request - Base URL: `https://api.clinicos.vet/backend/business` - URL: `https://api.clinicos.vet/backend/business/Invoices/{id}/send-invoice` - Auth: HTTP bearer - TypeScript: (a function with typed inputs; its response is checked against the schema) ## Path parameters - `id` string, required ## Response `200` OK - InvoiceDto - `id` string - `invoiceNumber` string - `clientId` string, nullable - `clientName` string, nullable - `patientId` string, nullable - `patientName` string, nullable - `appointmentId` string, nullable - `providerMode` string - `invoiceProviderId` string, nullable - `invoiceProvider` UserSummaryDto - `id` string - `email` string - `firstName` string, nullable - `lastName` string, nullable - `displayName` string, nullable - `type` string - `roleId` string, nullable - `roleName` string, nullable - `status` string - `amountPaid` union: Money the clinic is actually holding on this bill — `PaymentLedger.TotalPaid` (originals positive, refund rows negative). Zero for a bill refunded to net zero and for one carrying only pending or failed attempts. This is what gates void / revert / delete server-side; the UI reads it so it can't drift from the guard. Note that `Status` is a stored column and can disagree — this is the money truth. - number, double - string, double - `hasUnresolvedPayment` boolean: A payment here is still open: either an unconfirmed gateway outcome (`RequiresReview` — the card MAY have been charged) or a gateway-accepted debit that hasn't settled yet (a Pending ACH with a TransactionId — money in flight). An unpaid Text2Pay link is NOT open; it holds nothing. Deliberately excluded from decimal InvoiceDto.AmountPaid so it never inflates a balance, but it still blocks void / revert / delete until the settlement sweep or a human resolves it. - `hasSourceEstimate` boolean, nullable: Whether an estimate row points at this invoice (Estimates.InvoiceId == Id), i.e. the bill was converted from an estimate and revert-to-estimate has somewhere to go. False for a bill built directly in the Payments panel — revert would 409 NO_SOURCE_ESTIMATE, so the UI hides the control and leaves void as the exit. Null when the endpoint didn't compute it (only fulfillment-mapped responses do, e.g. GET /invoices/{id}); treat null as unknown, never as "no". - `subTotal` union - number, double - string, double - `taxableSubTotal` union - number, double - string, double - `taxRate` union - number, double - string, double - `taxAmount` union - number, double - string, double - `taxMode` string: "us-sales-tax" or "vat" — snapshot at estimate creation. - `discountTotal` union - number, double - string, double - `orderDiscountAmount` union - number, double - string, double - `ruleOrderDiscountAmount` union: Order-level discount produced by the price rule engine (separate from discount codes). - number, double - string, double - `totalAmount` union - number, double - string, double - `notes` string, nullable - `mergedIntoInvoiceId` string, nullable: Set when this invoice was merged into a new combined invoice (it is then Superseded): the id of the successor bill. - `mergedIntoInvoiceNumber` string, nullable: Human-readable number of the successor combined invoice this one was merged into (set only on a Superseded source). Lets the UI link forward without a second fetch. - `mergedFromInvoices` MergedInvoiceRefDto[]: The source invoices this combined bill was assembled from (empty for a normal invoice). Drives the "Combined from …" provenance shown on the merged invoice. - `id` string - `invoiceNumber` string - `patientName` string, nullable - `patientShares` InvoicePatientShareDto[]: Per-pet split of a combined bill that spans several patients, one entry per pet (plus a null-patient entry for unattributed lines). Empty for a single-patient bill, whose ordinary invoice PDF already is the pet's receipt. - `patientId` string, nullable - `patientName` string, nullable - `lineCount` union - integer - string, int32 - `totalAmount` union: The pet's total: its lines, its share of order discounts, and its tax. - number, double - string, double - `signatureData` string, nullable - `signedAt` string, date-time, nullable - `issuedAt` string, date-time, nullable: When the bill was issued (Draft → Unpaid) and its totals frozen. Null for Drafts and legacy invoices issued before the issue boundary. - `isOnAccount` boolean: House accounts (ITE-670): deliberately charged to the client's account. - `dueDate` string, date-time, nullable: Due date (issue date + terms); set by charge-to-account, null otherwise. - `items` InvoiceLineItemDto[] - `id` string - `invoiceId` string - `serviceCatalogItemId` string, nullable - `retailItemId` string, nullable - `retailItem` RetailItemSummaryDto - `id` string - `sku` string - `barcode` string, nullable - `name` string - `invoiceName` string, nullable - `category` string - `unitPrice` union - number, double - string, double - `isTaxable` boolean - `isActive` boolean - `quantityOnHand` union - number, double - string, double - `isLowStock` boolean - `vendorId` string, nullable - `vendorName` string, nullable - `vendorProductCode` string, nullable - `brand` string, nullable - `inventoryItemId` string, nullable - `billableItemId` string, nullable: Source BillableItem ("Charge") when this line was added from the charge catalog. - `billableItemName` string, nullable: Display name of the source BillableItem (snapshot, response-only). - `isFulfilled` boolean: True when a BillableItem charge line has been fulfilled — its inventory components dispensed (derived from linked transactions, response-only). - `inventoryTransactionId` string, nullable - `unitCost` union - number, double - string, double - `code` string, nullable - `description` string - `unitPrice` union - number, double - string, double - `quantity` union - number, double - string, double - `isFlatRate` boolean: Flat-rate inventory line: billed as one administration whatever amount was given. - `dispensedQuantity` union: Amount given on a flat-rate line; null on per-unit lines. - number, double - string, double - `discount` union - number, double - string, double - `discountSetById` string, nullable: Audit: who last set a manual discount on this line, and when. - `discountSetAt` string, date-time, nullable - `originalUnitPrice` union: The catalog price before staff overrode `unitPrice`; null = not overridden. - number, double - string, double - `priceOverriddenById` string, nullable - `priceOverriddenAt` string, date-time, nullable - `appliedDiscountPolicyId` string, nullable - `appliedDiscountCode` string, nullable - `ruleDiscount` union: Discount produced by the price rule engine (separate from the manual `Discount`). - number, double - string, double - `benefitDiscount` union: Discount produced by the wellness-plan benefit pass (ITE-659) — a line covered by an enrolled patient's plan benefit. Server-computed on recalc; client values are ignored. - number, double - string, double - `dispenseFee` union - number, double - string, double - `lineTotal` union - number, double - string, double - `isTaxable` boolean - `vatCategory` string, nullable - `lineTaxAmount` union - number, double - string, double - `providerId` string, nullable - `provider` UserSummaryDto - `id` string - `email` string - `firstName` string, nullable - `lastName` string, nullable - `displayName` string, nullable - `type` string - `roleId` string, nullable - `roleName` string, nullable - `notes` string, nullable - `displayOrder` union - integer - string, int32 - `groupCodeId` string, nullable: Kit this line came from, when emitted via GroupCode expansion. - `groupCodeName` string, nullable: Snapshot of the kit's display name at time of add. - `kitInstanceId` string, nullable: Which add of the kit this line came from (shared by that add's lines). Server-owned and read-only, like string? InvoiceLineItemDto.SectionKey: invoice saves never write it. - `sectionKey` string, nullable: The estimate line group this line was billed under (EstimateLineGroups), snapshotted at convert; null when ungrouped or added to the bill directly. Read-only: invoice saves ignore it. List<InvoiceLineItemDto> InvoiceDto.Items already comes in section order. - `sectionTitle` string, nullable: Heading of string? InvoiceLineItemDto.SectionKey's section. - `patientId` string, nullable: The pet this line is attributed to on a combined multi-pet bill (ITE-1157) — the resolved attribution, not the raw column. Set only on bills that carry `patientShares`; null there means no pet could be resolved. - `patientIdLocked` boolean: True when the line's pet can't be changed: it was dispensed for a pet, or a pet's plan benefit paid for it. The pet comes from that record. - `patientIdLockReason` string, nullable: Why bool InvoiceLineItemDto.PatientIdLocked is set, for the UI's tooltip. - `appliedDiscounts` AppliedDiscountDto[] - `id` string - `invoiceId` string - `discountPolicyId` string - `invoiceLineItemId` string, nullable - `discountCode` string - `discountName` string - `discountType` string - `discountValue` union - number, double - string, double - `calculatedAmount` union - number, double - string, double - `appliedBy` UserSummaryDto - `id` string - `email` string - `firstName` string, nullable - `lastName` string, nullable - `displayName` string, nullable - `type` string - `roleId` string, nullable - `roleName` string, nullable - `appliedAt` string, date-time - `appliedPriceRules` AppliedPriceRuleDto[]: Audit records of price rules that produced discounts on this estimate. - `id` string - `priceRuleId` string - `invoiceLineItemId` string, nullable - `ruleName` string - `ruleType` string - `calculatedAmount` union - number, double - string, double - `evaluatedAt` string, date-time - `createdBy` UserSummaryDto - `id` string - `email` string - `firstName` string, nullable - `lastName` string, nullable - `displayName` string, nullable - `type` string - `roleId` string, nullable - `roleName` string, nullable - `createdAt` string, date-time - `updatedAt` string, date-time - `discountWarnings` string[], nullable: Set only on the convert-to-invoice response: estimate discount codes that could not be carried onto the bill (expired, usage limit, below minimum…), one message each. Null otherwise. ## Changes - **2026-10-28** `099cf36186e0`: 3 info - added the optional property `items/items/kitInstanceId` to the response with the `200` status (media type: text/plain) - added the optional property `items/items/kitInstanceId` to the response with the `200` status (media type: application/json) - added the optional property `items/items/kitInstanceId` to the response with the `200` status (media type: text/json) - **2026-10-21** `85ee96c0bb96`: 12 info - added the optional property `items/items/retailItem/oneOf[#/components/schemas/RetailItemSummaryDto]/brand` to the response with the `200` status (media type: text/plain) - added the optional property `items/items/retailItem/oneOf[#/components/schemas/RetailItemSummaryDto]/brand` to the response with the `200` status (media type: application/json) - added the optional property `items/items/retailItem/oneOf[#/components/schemas/RetailItemSummaryDto]/brand` to the response with the `200` status (media type: text/json) - added the optional property `items/items/retailItem/oneOf[#/components/schemas/RetailItemSummaryDto]/vendorProductCode` to the response with the `200` status (media type: text/plain) - …8 more - …earlier changes not shown [Operation history](https://skmtc.dev/clinicos/apis/pawthosx-business-api-v1/changes/Invoices/:id/send-invoice/post.md) --- [API](https://skmtc.dev/clinicos/apis/pawthosx-business-api-v1.md) - [All operations](https://skmtc.dev/clinicos/apis/pawthosx-business-api-v1/llms.txt) - [OpenAPI document](https://skmtc.dev/clinicos/apis/pawthosx-business-api-v1/revisions/099cf36186e0?raw)