diff --git a/DECISIONS.md b/DECISIONS.md
index cd201e06..8b7eee9e 100644
--- a/DECISIONS.md
+++ b/DECISIONS.md
@@ -1025,3 +1025,4 @@ One line per decision: `[YYYY-MM-DD] <decision>: <why>`. Appended by agents and
 [2026-08-17] Full-archive direct download resurfaced as an ImportRow + small centered dialog on /import's Exportera tab (row "Komplett arkiv", hash #full-archive), not by re-mounting the orphaned components/settings/BackupDownloadForm.tsx: the form was pre-frame card styling with a duplicate cloud-backup section, while the export tab's existing SIE dialog sets the house pattern (ImportRow -> sm:max-w-md dialog). Its logic (estimate, 413 handling, last-download stamp) ported into components/import/FullArchiveDialog.tsx; the orphan and its dead settings_backup_download i18n namespace deleted. The dialog reuses FiscalYearSelector despite design.md's "legacy, no new uses" line: FyPicker is a toolbar context chip, and the SIE dialog in the same file already uses FiscalYearSelector for the identical dialog-form slot, so matching it beats introducing a third pattern. Row gated to owner/admin because GET /api/reports/full-archive enforces that role server-side; showing members a download that can only 403 helps nobody.
 [2026-08-17] Article picker now overwrites the line's ROT/RUT (deduction_type + work_type) from the article's housework_type, INCLUDING clearing it when the article has none: article-defines-the-row is the established applyArticle semantic (description/price/unit already overwrite), and keeping a RUT flag when switching a row to a material article would silently claim a deduction on material (HUSFL labor-only rule). Kundkort personnummer prefill is a server-side fallback in buildInvoiceWriteData (typed > stored draft > kundkort), never a client prefill: customers.personal_number reaches the browser only as ciphertext/mask by design, so the editor just relaxes the required-mark and says where the number will come from.
 [2026-08-17] Arcim's "610 bilagor i Hela historiken men 100 i räkenskapsåret" in the full-archive dialog is NOT a pagination bug: verified against prod, exactly 100 documents are linked to posted vouchers in the single (extended) fiscal year and 510 are unlinked inbox/receipt docs, which scope=all includes by design (same split as cloud backup's year-ZIPs vs Grunddata.zip). Kept the semantics, fixed two things instead: estimateArchiveSize's period branch ran one unpaginated read with one flat IN() over every entry id (undercounts past the PostgREST row cap, URL blowup past ~a few hundred ids) -> now CHILD_FK_CHUNK-chunked and fetchAllRows-paginated like writeDocuments already was; and the dialog now states per scope which document set is counted, so the gap reads as intent, not as a bug.
+[2026-08-17] Supplier standardkonto empty-string fix lives in the API schemas, split by verb: '' normalizes to undefined on create (key dropped, column NULL) but to null on update, because update routes pass validated fields straight into .update() where undefined means "leave unchanged"; without the null mapping a cleared standardkonto/e-post would silently never clear. Client keeps sending '' as-is (the old email-strip hack removed), since stripping client-side would break exactly that clear path. The field itself became an AccountCombobox filtered to cost classes 4-7 (matches the agent-path expenseAccountField rule); other 4-digit numbers stay typeable, and the API still enforces format only. Standardkonto stays optional: it only prefills supplier-invoice lines, and the ledger-context suggestion covers the empty case, so requiring it (what the bug accidentally did) is wrong for the target user.
diff --git a/components/suppliers/SupplierForm.tsx b/components/suppliers/SupplierForm.tsx
index 087cc00c..ccaabe7d 100644
--- a/components/suppliers/SupplierForm.tsx
+++ b/components/suppliers/SupplierForm.tsx
@@ -1,6 +1,6 @@
 'use client'
 
-import { useMemo } from 'react'
+import { useEffect, useMemo, useState } from 'react'
 import { useForm, Controller } from 'react-hook-form'
 import { zodResolver } from '@hookform/resolvers/zod'
 import { z } from 'zod'
@@ -10,9 +10,10 @@ import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { Textarea } from '@/components/ui/textarea'
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select'
-import { Loader2, Lock } from 'lucide-react'
+import { Loader2, Lock, X } from 'lucide-react'
+import AccountCombobox from '@/components/bookkeeping/AccountCombobox'
 import { useCanWrite } from '@/lib/hooks/use-can-write'
-import type { CreateSupplierInput } from '@/types'
+import type { BASAccount, CreateSupplierInput } from '@/types'
 
 interface SupplierFormProps {
   onSubmit: (data: CreateSupplierInput) => Promise<void>
@@ -27,6 +28,37 @@ export default function SupplierForm({
 }: SupplierFormProps) {
   const { canWrite } = useCanWrite()
   const t = useTranslations('form_supplier')
+  const [accounts, setAccounts] = useState<BASAccount[]>([])
+
+  useEffect(() => {
+    let cancelled = false
+    async function fetchAccounts() {
+      try {
+        const res = await fetch('/api/bookkeeping/accounts')
+        if (!res.ok) return
+        const { data } = await res.json()
+        if (!cancelled) setAccounts(data || [])
+      } catch {
+        // Without the chart the combobox still accepts a typed 4-digit number.
+      }
+    }
+    fetchAccounts()
+    return () => {
+      cancelled = true
+    }
+  }, [])
+
+  // The default account seeds expense lines on supplier invoices, so the
+  // browsable list is cost classes 4-7. Any other 4-digit number can still be
+  // typed in; the API only enforces the format.
+  const expenseAccounts = useMemo(
+    () => accounts.filter((a) => a.account_class >= 4 && a.account_class <= 7),
+    [accounts]
+  )
+  const accountNameByNumber = useMemo(
+    () => new Map(accounts.map((a) => [a.account_number, a.account_name])),
+    [accounts]
+  )
 
   const schema = useMemo(() => z.object({
     name: z.string().min(1, t('name_required')),
@@ -85,11 +117,10 @@ export default function SupplierForm({
     },
   })
 
+  // Empty strings go through as-is: the API schemas normalize them (dropped on
+  // create, null on update so a cleared field actually clears the column).
   const onFormSubmit = (data: FormData) => {
-    onSubmit({
-      ...data,
-      email: data.email || undefined,
-    })
+    onSubmit(data)
   }
 
   return (
@@ -241,11 +272,33 @@ export default function SupplierForm({
       <div className="space-y-4 pt-4 border-t">
         <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
           <div className="space-y-2">
-            <Label htmlFor="default_expense_account">{t('default_account_label')}</Label>
-            <Input
-              id="default_expense_account"
-              placeholder={t('default_account_placeholder')}
-              {...register('default_expense_account')}
+            <Label>{t('default_account_label')}</Label>
+            <Controller
+              name="default_expense_account"
+              control={control}
+              render={({ field }) => (
+                <div className="flex items-start gap-1">
+                  <div className="min-w-0 flex-1">
+                    <AccountCombobox
+                      value={field.value || ''}
+                      accounts={expenseAccounts}
+                      onChange={field.onChange}
+                      selectedName={accountNameByNumber.get(field.value || '')}
+                    />
+                  </div>
+                  {field.value ? (
+                    <Button
+                      type="button"
+                      variant="ghost"
+                      size="icon"
+                      aria-label={t('default_account_clear')}
+                      onClick={() => field.onChange('')}
+                    >
+                      <X className="h-4 w-4" />
+                    </Button>
+                  ) : null}
+                </div>
+              )}
             />
           </div>
           <div className="space-y-2">
diff --git a/lib/api/__tests__/schemas.test.ts b/lib/api/__tests__/schemas.test.ts
index 6eac3ffc..205a4a41 100644
--- a/lib/api/__tests__/schemas.test.ts
+++ b/lib/api/__tests__/schemas.test.ts
@@ -743,6 +743,24 @@ describe('CreateSupplierSchema', () => {
     const result = CreateSupplierSchema.safeParse(validSupplier({ default_expense_account: '6200' }))
     expect(result.success).toBe(true)
   })
+
+  // The web form submits untouched optional inputs as '' (Björn 2026-08-17:
+  // saving with the field left blank failed "Kontonummer måste vara 4 siffror").
+  it('treats empty-string expense account as absent', () => {
+    const result = CreateSupplierSchema.safeParse(validSupplier({ default_expense_account: '' }))
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.default_expense_account).toBeUndefined()
+    }
+  })
+
+  it('treats empty-string email as absent', () => {
+    const result = CreateSupplierSchema.safeParse(validSupplier({ email: '' }))
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.email).toBeUndefined()
+    }
+  })
 })
 
 // ============================================================
@@ -2206,6 +2224,39 @@ describe('UpdateSupplierSchema', () => {
     expect(result.success).toBe(true)
   })
 
+  // Update routes pass fields straight into .update(), where undefined keys
+  // are dropped (unchanged) and null writes NULL. An empty string from a
+  // cleared form field must therefore become null, or clearing does nothing.
+  it('maps empty-string expense account to null so clearing persists', () => {
+    const result = UpdateSupplierSchema.safeParse({ default_expense_account: '' })
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.default_expense_account).toBeNull()
+    }
+  })
+
+  it('maps empty-string email to null so clearing persists', () => {
+    const result = UpdateSupplierSchema.safeParse({ email: '' })
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.email).toBeNull()
+    }
+  })
+
+  it('leaves omitted fields absent', () => {
+    const result = UpdateSupplierSchema.safeParse({ name: 'New Supplier' })
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect('default_expense_account' in result.data).toBe(false)
+      expect('email' in result.data).toBe(false)
+    }
+  })
+
+  it('still rejects a malformed expense account on update', () => {
+    const result = UpdateSupplierSchema.safeParse({ default_expense_account: '54' })
+    expect(result.success).toBe(false)
+  })
+
   it('rejects invalid expense account format', () => {
     const result = UpdateSupplierSchema.safeParse({ default_expense_account: '40' })
     expect(result.success).toBe(false)
diff --git a/lib/api/schemas.ts b/lib/api/schemas.ts
index 4046745d..cd8ba195 100644
--- a/lib/api/schemas.ts
+++ b/lib/api/schemas.ts
@@ -933,10 +933,25 @@ export const UpdateCustomerSchema = z.object({
 // Supplier schemas
 // ============================================================
 
+/**
+ * Optional field where an empty or whitespace-only string means "not set".
+ *
+ * HTML forms submit untouched inputs as '', which a format-validated
+ * `.optional()` field would reject ('' is a present string, so it hits the
+ * format rule). Same normalization as `optString` in
+ * lib/pending-operations/schemas/create-supplier.ts.
+ */
+function emptyStringAsUndefined<T extends z.ZodTypeAny>(inner: T) {
+  return z.preprocess(
+    (v) => (typeof v === 'string' && v.trim() === '' ? undefined : v),
+    inner.optional(),
+  )
+}
+
 export const CreateSupplierSchema = z.object({
   name: z.string().min(1, 'Supplier name is required'),
   supplier_type: SupplierTypeSchema,
-  email: z.string().email('Invalid email address').optional(),
+  email: emptyStringAsUndefined(z.string().email('Invalid email address')),
   phone: z.string().optional(),
   address_line1: z.string().optional(),
   address_line2: z.string().optional(),
@@ -952,13 +967,31 @@ export const CreateSupplierSchema = z.object({
   bic: z.string().optional(),
   clearing_number: z.string().optional(),
   account_number: z.string().optional(),
-  default_expense_account: accountNumber.optional(),
+  default_expense_account: emptyStringAsUndefined(accountNumber),
   default_payment_terms: z.number().int().positive().optional(),
   default_currency: CurrencySchema.nullable().optional(),
   notes: z.string().optional(),
 })
 
-export const UpdateSupplierSchema = CreateSupplierSchema.partial()
+/**
+ * Optional field where an empty or whitespace-only string means "clear it".
+ *
+ * Update routes pass validated fields straight into `.update({...})`, where
+ * undefined keys are dropped by supabase-js (column left unchanged) and null
+ * writes NULL. So on update an empty string from a cleared form field must
+ * become null, not undefined, or clearing would silently do nothing.
+ */
+function emptyStringAsNull<T extends z.ZodTypeAny>(inner: T) {
+  return z.preprocess(
+    (v) => (typeof v === 'string' && v.trim() === '' ? null : v),
+    inner.nullable().optional(),
+  )
+}
+
+export const UpdateSupplierSchema = CreateSupplierSchema.partial().extend({
+  email: emptyStringAsNull(z.string().email('Invalid email address')),
+  default_expense_account: emptyStringAsNull(accountNumber),
+})
 
 // ============================================================
 // Supplier invoice schemas
diff --git a/lib/api/v1/__tests__/openapi-request-schemas.test.ts b/lib/api/v1/__tests__/openapi-request-schemas.test.ts
index 3dcc5cf2..7cf845c2 100644
--- a/lib/api/v1/__tests__/openapi-request-schemas.test.ts
+++ b/lib/api/v1/__tests__/openapi-request-schemas.test.ts
@@ -47,6 +47,20 @@ describe('generateOpenApiSpec request contracts', () => {
     expect(schema?.required).toContain('customer_id')
   })
 
+  it('renders a z.preprocess field by its output schema and keeps it optional', () => {
+    // CreateSupplierSchema wraps email and default_expense_account in a
+    // preprocess pipe (empty string means absent). The callable sits on the
+    // pipe's input side, so describing the input would yield a required
+    // untyped field; the spec must show the output schema and not require it.
+    const op = operation('/api/v1/companies/{companyId}/suppliers', 'post')
+    const schema = op.requestBody?.content['application/json']?.schema
+    expect(schema?.properties?.email).toEqual({ type: 'string' })
+    expect(schema?.properties?.default_expense_account).toEqual({ type: 'string' })
+    expect(schema?.required).toContain('name')
+    expect(schema?.required).not.toContain('email')
+    expect(schema?.required).not.toContain('default_expense_account')
+  })
+
   it('renders multipart z.unknown() parts as binary file parts', () => {
     const op = operation('/api/v1/companies/{companyId}/documents', 'post')
     const schema = op.requestBody?.content['multipart/form-data']?.schema
diff --git a/lib/api/v1/registry.ts b/lib/api/v1/registry.ts
index daf53608..ba5c6b56 100644
--- a/lib/api/v1/registry.ts
+++ b/lib/api/v1/registry.ts
@@ -292,11 +292,16 @@ function zodToJsonSchema(schema: ZodTypeAny): JsonSchema {
       }
     }
     // `.transform()` / `.pipe()` wrappers: describe the INPUT side, which is
-    // what an API caller must send.
+    // what an API caller must send. `z.preprocess()` is the mirror image:
+    // its input side IS the callable (a ZodTransform, no describable type),
+    // and the schema the cleaned value must satisfy sits on the output side.
     case 'pipe':
     case 'ZodPipeline': {
-      const input = (def as { in?: ZodTypeAny }).in
-      return input ? zodToJsonSchema(input) : {}
+      const pipeDef = def as { in?: ZodTypeAny; out?: ZodTypeAny }
+      const inDef = (pipeDef.in as unknown as { _def?: { type?: string; typeName?: string } } | undefined)?._def
+      const inDisc = inDef?.type ?? inDef?.typeName ?? ''
+      const side = ['transform', 'ZodEffects'].includes(inDisc) ? pipeDef.out : pipeDef.in
+      return side ? zodToJsonSchema(side) : {}
     }
     case 'effects':
     case 'ZodEffects': {
@@ -310,10 +315,11 @@ function zodToJsonSchema(schema: ZodTypeAny): JsonSchema {
       const required: string[] = []
       for (const [key, value] of Object.entries(shape)) {
         properties[key] = zodToJsonSchema(value)
-        const valueDef = (value as unknown as { _def: { typeName?: string; type?: string } })._def
-        const valueDisc = valueDef.type ?? valueDef.typeName ?? ''
-        // Optional and defaulted fields may be omitted by the caller.
-        const mayOmit = ['optional', 'ZodOptional', 'default', 'ZodDefault'].includes(valueDisc)
+        // A field may be omitted exactly when the schema accepts undefined:
+        // covers optional and defaulted fields, and wrappers that only carry
+        // optionality inside (e.g. a preprocess pipe over `.optional()`),
+        // which a top-level discriminator check misclassifies as required.
+        const mayOmit = value.safeParse(undefined).success
         if (!mayOmit) {
           required.push(key)
         }
diff --git a/skills/accounted-api/references/core.md b/skills/accounted-api/references/core.md
index ae8ad489..7c0899f6 100644
--- a/skills/accounted-api/references/core.md
+++ b/skills/accounted-api/references/core.md
@@ -61,17 +61,17 @@ Request body:
 ```ts
 {
   bank_name?: string,
-  clearing_number: string | "",
-  account_number: string | "",
-  bankgiro: string | "",
-  plusgiro: string | "",
+  clearing_number?: string | "",
+  account_number?: string | "",
+  bankgiro?: string | "",
+  plusgiro?: string | "",
   swish?: string,
-  iban: string | "",
-  bic: string | "",
+  iban?: string | "",
+  bic?: string | "",
   contact_person?: string,
-  email: string | "",
+  email?: string | "",
   phone?: string,
-  website: string | "",
+  website?: string | "",
   invoice_email_texts?: {
     sv?: { subject?: string, greeting?: string, body?: string, signoff?: string },
     en?: { subject?: string, greeting?: string, body?: string, signoff?: string }
@@ -166,7 +166,7 @@ Response `200`:
     type: string,
     status: "queued" | "running" | "succeeded" | "failed" | "cancelled",
     progress?: Record<string, unknown>,
-    result: unknown,
+    result?: unknown,
     error: { code?: string, message?: string, details?: unknown },
     started_at: string,
     completed_at: string,
diff --git a/skills/accounted-api/references/customers.md b/skills/accounted-api/references/customers.md
index 8c1e8338..708c05cb 100644
--- a/skills/accounted-api/references/customers.md
+++ b/skills/accounted-api/references/customers.md
@@ -118,7 +118,7 @@ Request body:
   country?: string,
   org_number?: string,
   vat_number?: string,
-  personal_number: string,
+  personal_number?: string,
   language?: "sv" | "en",
   default_payment_terms?: number,
   notes?: string
@@ -353,7 +353,7 @@ Bulk-create endpoint mirroring /invoices/bulk-create. Each customer is validated
 Request body:
 ```ts
 {
-  customers: { name: string, customer_type: "individual" | "swedish_business" | "eu_business" | "non_eu_business", customer_number?: string, contact_person?: string, email?: string, phone?: string, invoice_email_cc_addresses?: string[], invoice_email_bcc_addresses?: string[], address_line1?: string, address_line2?: string, postal_code?: string, city?: string, country?: string, org_number?: string, vat_number?: string, personal_number: string, language?: "sv" | "en", default_payment_terms?: number, notes?: string }[],
+  customers: { name: string, customer_type: "individual" | "swedish_business" | "eu_business" | "non_eu_business", customer_number?: string, contact_person?: string, email?: string, phone?: string, invoice_email_cc_addresses?: string[], invoice_email_bcc_addresses?: string[], address_line1?: string, address_line2?: string, postal_code?: string, city?: string, country?: string, org_number?: string, vat_number?: string, personal_number?: string, language?: "sv" | "en", default_payment_terms?: number, notes?: string }[],
   all_or_nothing?: boolean
 }
 ```
diff --git a/skills/accounted-api/references/documents.md b/skills/accounted-api/references/documents.md
index dc2f6b22..97d80e71 100644
--- a/skills/accounted-api/references/documents.md
+++ b/skills/accounted-api/references/documents.md
@@ -31,7 +31,7 @@ Multipart upload of a document (PDF / image) under the BFL 7 kap retention regim
 Request body (`multipart/form-data`):
 ```ts
 {
-  file: string,
+  file?: string,
   upload_source?: "file_upload" | "camera" | "email" | "api",
   journal_entry_id?: string,
   journal_entry_line_id?: string
diff --git a/skills/accounted-api/references/employees.md b/skills/accounted-api/references/employees.md
index 44cb56a9..a2ac9d0e 100644
--- a/skills/accounted-api/references/employees.md
+++ b/skills/accounted-api/references/employees.md
@@ -716,7 +716,7 @@ Request body:
 Response `200`:
 ```ts
 {
-  data: { vacation_year_closure_id: string, adjustment_entry_id: string, report: unknown },
+  data: { vacation_year_closure_id: string, adjustment_entry_id: string, report?: unknown },
   meta: {
     request_id: string,
     api_version: string,
diff --git a/skills/accounted-api/references/reports.md b/skills/accounted-api/references/reports.md
index 99c8b18d..b482ab64 100644
--- a/skills/accounted-api/references/reports.md
+++ b/skills/accounted-api/references/reports.md
@@ -28,7 +28,7 @@ Returns the customer-receivable ledger as of `as_of_date` (defaults to today). E
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -62,7 +62,7 @@ Returns the annual avgifter basis per employee for `year`, summed across booked
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -96,7 +96,7 @@ Returns assets / liabilities / equity grouped into BAS sections, with the period
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -130,7 +130,7 @@ Validates that the target period's opening balances (IB) equal the prior period'
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -165,7 +165,7 @@ Returns every posted journal line in the period grouped by account, with opening
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -199,7 +199,7 @@ Returns the period's revenue and expenses grouped by BAS class with subtotals (g
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -234,7 +234,7 @@ Returns every committed journal entry in the period with its voucher number, dat
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -267,7 +267,7 @@ Returns revenue + expenses + net result per calendar month inside the fiscal per
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -303,7 +303,7 @@ Returns per-employee salary figures (gross / tax / net / avgifter / vacation acc
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -361,7 +361,7 @@ Returns the supplier-payable ledger as of `as_of_date` (defaults to today). Each
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -435,7 +435,7 @@ Returns per-employee semesterlöneskuld balances as of year-end based on their v
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
@@ -471,7 +471,7 @@ Computes momsdeklaration rutor for the given period_type / year / period. The re
 Response `200`:
 ```ts
 {
-  data: unknown,
+  data?: unknown,
   meta: {
     request_id: string,
     api_version: string,
diff --git a/skills/accounted-api/references/salary-runs.md b/skills/accounted-api/references/salary-runs.md
index 6100d8aa..302ef177 100644
--- a/skills/accounted-api/references/salary-runs.md
+++ b/skills/accounted-api/references/salary-runs.md
@@ -96,7 +96,7 @@ Response `200`:
     booked_at: string,
     created_at: string,
     notes: string,
-    calculation_params: unknown,
+    calculation_params?: unknown,
     updated_at: string
   },
   meta: {
@@ -151,7 +151,7 @@ Response `200`:
     vacation_entry_id: string,
     agi_generated_at: string,
     agi_submitted_at: string,
-    calculation_params: unknown,
+    calculation_params?: unknown,
     approved_by: string,
     approved_at: string,
     paid_at: string,
@@ -218,7 +218,7 @@ Response `200`:
     vacation_entry_id: string,
     agi_generated_at: string,
     agi_submitted_at: string,
-    calculation_params: unknown,
+    calculation_params?: unknown,
     approved_by: string,
     approved_at: string,
     paid_at: string,
@@ -549,7 +549,7 @@ Response `200`:
     ytd_gross: number,
     ytd_tax: number,
     ytd_net: number,
-    calculation_breakdown: unknown,
+    calculation_breakdown?: unknown,
     line_items: { salary_line_item_id: string, item_type: string, description: string, quantity: number, unit_price: number, amount: number, is_taxable: boolean, is_avgift_basis: boolean, is_vacation_basis: boolean, is_gross_deduction: boolean, is_net_deduction: boolean, account_number: string, sort_order: number }[],
     created_at: string,
     updated_at: string