feat(crm): add invoices CLI and opportunity update

Expose CRM invoice list/get/create/delete and catalog items via oo,
plus contact address/about helpers and opportunity bid/stage update.
Needed for Medex VM billing and other draft invoices.

cmd/oo/cli_test.go

@@ -11,7 +11,7 @@ func TestRootRegistersSubjects(t *testing.T) {
 	want := []string{
 		"calendar", "projects", "tasks", "users", "whoami",
 		"contacts", "persons", "companies",
-		"opportunities", "cases", "crm-tasks", "applications", "crm", "mails", "catalog",
+		"opportunities", "cases", "crm-tasks", "applications", "crm", "mails", "catalog", "invoices",
 	}
 	got := make(map[string]bool, len(rootCmd.Commands()))
 	for _, c := range rootCmd.Commands() {
@@ -38,7 +38,7 @@ func TestRootHelpListsSubjects(t *testing.T) {
 		t.Fatal(err)
 	}
 	help := out.String()
-	for _, snippet := range []string{"calendar", "projects", "tasks", "users", "opportunities"} {
+	for _, snippet := range []string{"calendar", "projects", "tasks", "users", "opportunities", "invoices"} {
 		if !strings.Contains(help, snippet) {
 			t.Fatalf("help missing %q", snippet)
 		}

cmd/oo/common.go

@@ -20,7 +20,7 @@ var outputFormat = "table"
 var rootCmd = &cobra.Command{
 	Use:           "oo",
 	Short:         "OnlyOffice Workspace CLI — subject-based command tree",
-	Long:          "oo is a thin CLI over github.com/eslider/go-onlyoffice.\nCommands are grouped by OnlyOffice subject (calendar, projects, tasks, users, persons, companies, opportunities, cases, crm-tasks, applications, catalog).",
+	Long:          "oo is a thin CLI over github.com/eslider/go-onlyoffice.\nCommands are grouped by OnlyOffice subject (calendar, projects, tasks, users, persons, companies, opportunities, cases, crm-tasks, applications, catalog, invoices).",
 	Version:       version,
 	SilenceUsage:  true,
 	SilenceErrors: false,

cmd/oo/contacts.go

@@ -201,7 +201,7 @@ func contactsInfoAddCmd() *cobra.Command {
 }
 
 func personsCreateCmd() *cobra.Command {
-	var first, last, email, linkedin string
+	var first, last, email, linkedin, phone string
 	var companyID int
 	var jobTitle, about string
 	cmd := &cobra.Command{
@@ -224,6 +224,9 @@ func personsCreateCmd() *cobra.Command {
 			if email != "" {
 				_, _ = c.AddContactInfo(cmd.Context(), pid, "Email", email, "Work", true)
 			}
+			if phone != "" {
+				_, _ = c.AddContactInfo(cmd.Context(), pid, "Phone", phone, "Work", true)
+			}
 			if linkedin != "" {
 				_, _ = c.AddContactInfo(cmd.Context(), pid, "LinkedIn", linkedin, "Work", false)
 			}
@@ -237,6 +240,7 @@ func personsCreateCmd() *cobra.Command {
 	cmd.Flags().StringVar(&jobTitle, "job-title", "", "")
 	cmd.Flags().StringVar(&about, "about", "", "about / bio")
 	cmd.Flags().StringVar(&email, "email", "", "primary email (adds ContactInfo)")
+	cmd.Flags().StringVar(&phone, "phone", "", "primary phone (adds ContactInfo)")
 	cmd.Flags().StringVar(&linkedin, "linkedin", "", "linkedin url (adds ContactInfo)")
 	return cmd
 }
@@ -347,7 +351,7 @@ func contactEmailsFromMap(p map[string]any) []string {
 }
 
 func companiesCreateCmd() *cobra.Command {
-	var name, email, website string
+	var name, email, website, phone, about, street, city, state, zip, country string
 	cmd := &cobra.Command{
 		Use:     "create",
 		Aliases: []string{"add"},
@@ -365,12 +369,34 @@ func companiesCreateCmd() *cobra.Command {
 				return err
 			}
 			cid := strconv.Itoa(int(flexIDFloat(out["id"])))
+			if about != "" || street != "" {
+				aboutText := about
+				if street != "" {
+					addr := strings.TrimSpace(strings.Join([]string{street, zip, city, state, country}, ", "))
+					if aboutText != "" {
+						aboutText = aboutText + "\n" + addr
+					} else {
+						aboutText = "Billing address: " + addr
+					}
+				}
+				if updated, err := c.UpdateCompany(cmd.Context(), cid, name, aboutText); err == nil {
+					out = updated
+				}
+			}
 			if email != "" {
 				_, _ = c.AddContactInfo(cmd.Context(), cid, "Email", email, "Work", true)
 			}
 			if website != "" {
 				_, _ = c.AddContactInfo(cmd.Context(), cid, "Website", website, "Work", false)
 			}
+			if phone != "" {
+				_, _ = c.AddContactInfo(cmd.Context(), cid, "Phone", phone, "Work", true)
+			}
+			if street != "" {
+				if _, err := c.AddContactAddress(cmd.Context(), cid, street, city, state, zip, country, "Billing", true); err != nil {
+					fmt.Fprintf(cmd.ErrOrStderr(), "warning: address API failed (stored in about): %v\n", err)
+				}
+			}
 			printObject(out)
 			return nil
 		},
@@ -378,6 +404,13 @@ func companiesCreateCmd() *cobra.Command {
 	cmd.Flags().StringVar(&name, "name", "", "company name")
 	cmd.Flags().StringVar(&email, "email", "", "primary email (adds ContactInfo)")
 	cmd.Flags().StringVar(&website, "website", "", "website url (adds ContactInfo)")
+	cmd.Flags().StringVar(&phone, "phone", "", "primary phone (adds ContactInfo)")
+	cmd.Flags().StringVar(&about, "about", "", "about / notes")
+	cmd.Flags().StringVar(&street, "street", "", "billing street")
+	cmd.Flags().StringVar(&city, "city", "", "billing city")
+	cmd.Flags().StringVar(&state, "state", "", "billing state")
+	cmd.Flags().StringVar(&zip, "zip", "", "billing zip")
+	cmd.Flags().StringVar(&country, "country", "", "billing country")
 	return cmd
 }
 

cmd/oo/invoices.go

@@ -0,0 +1,269 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/spf13/cobra"
+)
+
+var invoicesCmd = &cobra.Command{
+	Use:     "invoices",
+	Aliases: []string{"invoice"},
+	Short:   "CRM invoices (billing)",
+}
+
+func init() {
+	rootCmd.AddCommand(invoicesCmd)
+	invoicesCmd.AddCommand(invoiceListCmd())
+	invoicesCmd.AddCommand(invoiceGetCmd())
+	invoicesCmd.AddCommand(invoiceCreateCmd())
+	invoicesCmd.AddCommand(invoiceDeleteCmd())
+	invoicesCmd.AddCommand(invoiceItemsCmd())
+}
+
+func invoiceListCmd() *cobra.Command {
+	var count, offset int
+	cmd := &cobra.Command{
+		Use:   "list",
+		Short: "List CRM invoices",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			list, total, err := c.ListInvoices(cmd.Context(), count, offset)
+			if err != nil {
+				return err
+			}
+			rows := make([]map[string]any, 0, len(list))
+			for _, inv := range list {
+				rows = append(rows, onlyoffice.FlattenInvoiceRow(inv))
+			}
+			if outputFormat == "table" {
+				fmt.Printf("total: %d (shown: %d)\n", total, len(rows))
+			}
+			printTable([]string{"id", "number", "cost", "statusTitle", "contactName", "issueDate", "dueDate"}, rows)
+			return nil
+		},
+	}
+	cmd.Flags().IntVar(&count, "count", 50, "")
+	cmd.Flags().IntVar(&offset, "offset", 0, "")
+	return cmd
+}
+
+func invoiceGetCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "get INVOICE_ID",
+		Short: "Show an invoice by id (incl. lines)",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.GetInvoice(cmd.Context(), args[0])
+			if err != nil {
+				return err
+			}
+			printObject(out)
+			return nil
+		},
+	}
+}
+
+func invoiceCreateCmd() *cobra.Command {
+	var (
+		number, issueDate, dueDate, language, currency, terms, description, po string
+		contactID, itemID                                                      int64
+		price, qty                                                             float64
+		lineDesc                                                               string
+	)
+	cmd := &cobra.Command{
+		Use:   "create",
+		Short: "Create a draft invoice with one line",
+		Long: `Create a CRM invoice (Draft) with a single line.
+
+Example:
+  oo invoices create --number INV-2026-01 --contact 123 --item 10 \
+    --price 300 --description "Service package" \
+    --terms "…payment terms…"
+`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if number == "" || contactID == 0 || itemID == 0 {
+				return fmt.Errorf("--number, --contact and --item are required")
+			}
+			if issueDate == "" {
+				issueDate = time.Now().Format("2006-01-02") + "T00:00:00.0000000+01:00"
+			} else if !strings.Contains(issueDate, "T") {
+				issueDate = issueDate + "T00:00:00.0000000+01:00"
+			}
+			if dueDate == "" {
+				dueDate = time.Now().Add(14 * 24 * time.Hour).Format("2006-01-02") + "T00:00:00.0000000+01:00"
+			} else if !strings.Contains(dueDate, "T") {
+				dueDate = dueDate + "T00:00:00.0000000+01:00"
+			}
+			if qty == 0 {
+				qty = 1
+			}
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.CreateInvoice(cmd.Context(), onlyoffice.CreateInvoiceParams{
+				Number:              number,
+				IssueDate:           issueDate,
+				DueDate:             dueDate,
+				ContactID:           contactID,
+				Language:            language,
+				Currency:            currency,
+				ExchangeRate:        1,
+				PurchaseOrderNumber: po,
+				Terms:               terms,
+				Description:         description,
+				Lines: []onlyoffice.InvoiceLine{{
+					InvoiceItemID: itemID,
+					Description:   lineDesc,
+					Quantity:      qty,
+					Price:         price,
+					SortOrder:     0,
+				}},
+			})
+			if err != nil {
+				return err
+			}
+			printObject(out)
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&number, "number", "", "invoice number (e.g. INV-2026-01)")
+	cmd.Flags().Int64Var(&contactID, "contact", 0, "bill-to contact id (company preferred)")
+	cmd.Flags().Int64Var(&itemID, "item", 0, "catalog invoice item id")
+	cmd.Flags().Float64Var(&price, "price", 0, "line price")
+	cmd.Flags().Float64Var(&qty, "qty", 1, "line quantity")
+	cmd.Flags().StringVar(&lineDesc, "line-description", "", "line description override")
+	cmd.Flags().StringVar(&issueDate, "issue-date", "", "YYYY-MM-DD (default today)")
+	cmd.Flags().StringVar(&dueDate, "due-date", "", "YYYY-MM-DD (default +14d)")
+	cmd.Flags().StringVar(&language, "language", "de-DE", "invoice language")
+	cmd.Flags().StringVar(&currency, "currency", "EUR", "currency abbreviation")
+	cmd.Flags().StringVar(&terms, "terms", "", "payment terms / footer")
+	cmd.Flags().StringVar(&description, "description", "", "invoice description")
+	cmd.Flags().StringVar(&po, "po", "", "purchase order number")
+	return cmd
+}
+
+func invoiceDeleteCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "delete INVOICE_ID [INVOICE_ID...]",
+		Short: "Delete one or more invoices",
+		Args:  cobra.MinimumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			for _, id := range args {
+				if _, err := c.DeleteInvoice(cmd.Context(), id); err != nil {
+					return err
+				}
+				fmt.Println("deleted", id)
+			}
+			return nil
+		},
+	}
+}
+
+func invoiceItemsCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "items",
+		Aliases: []string{"item"},
+		Short:   "Invoice catalog items",
+	}
+	cmd.AddCommand(invoiceItemsListCmd())
+	cmd.AddCommand(invoiceItemsCreateCmd())
+	cmd.AddCommand(invoiceItemsDeleteCmd())
+	return cmd
+}
+
+func invoiceItemsListCmd() *cobra.Command {
+	var count, offset int
+	cmd := &cobra.Command{
+		Use:   "list",
+		Short: "List catalog invoice items",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			list, total, err := c.ListInvoiceItems(cmd.Context(), count, offset)
+			if err != nil {
+				return err
+			}
+			if outputFormat == "table" {
+				fmt.Printf("total: %d (shown: %d)\n", total, len(list))
+				for _, row := range list {
+					if cur, ok := row["currency"].(map[string]any); ok {
+						row["currency"] = cur["abbreviation"]
+					}
+				}
+			}
+			printTable([]string{"id", "title", "price", "currency", "description"}, list)
+			return nil
+		},
+	}
+	cmd.Flags().IntVar(&count, "count", 50, "")
+	cmd.Flags().IntVar(&offset, "offset", 0, "")
+	return cmd
+}
+
+func invoiceItemsCreateCmd() *cobra.Command {
+	var title, description, currency string
+	var price float64
+	cmd := &cobra.Command{
+		Use:   "create",
+		Short: "Create a catalog invoice item",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if title == "" {
+				return fmt.Errorf("--title is required")
+			}
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.CreateInvoiceItem(cmd.Context(), title, description, price, currency)
+			if err != nil {
+				return err
+			}
+			printObject(out)
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&title, "title", "", "item title")
+	cmd.Flags().StringVar(&description, "description", "", "item description")
+	cmd.Flags().Float64Var(&price, "price", 0, "unit price")
+	cmd.Flags().StringVar(&currency, "currency", "EUR", "currency")
+	return cmd
+}
+
+func invoiceItemsDeleteCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "delete ITEM_ID [ITEM_ID...]",
+		Short: "Delete catalog invoice items",
+		Args:  cobra.MinimumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			for _, id := range args {
+				if _, err := c.DeleteInvoiceItem(cmd.Context(), id); err != nil {
+					return err
+				}
+				fmt.Println("deleted", id)
+			}
+			return nil
+		},
+	}
+}

cmd/oo/main.go

@@ -14,6 +14,7 @@
 //	oo crm-tasks     list | create | delete | categories
 //	oo crm           cleanup
 //	oo mails         accounts | folders | list | get | delete
+//	oo invoices      list | get | create | delete | items (list|create|delete)
 //	oo applications  sync
 //	oo catalog       scan-contacts | scan-projects | scan-thunderbird | merge | match | apply
 //

cmd/oo/opportunities.go

@@ -19,6 +19,7 @@ func init() {
 	opportunitiesCmd.AddCommand(oppListCmd())
 	opportunitiesCmd.AddCommand(oppGetCmd())
 	opportunitiesCmd.AddCommand(oppCreateCmd())
+	opportunitiesCmd.AddCommand(oppUpdateCmd())
 	opportunitiesCmd.AddCommand(oppDeleteCmd())
 	opportunitiesCmd.AddCommand(oppStagesCmd())
 	opportunitiesCmd.AddCommand(oppMemberAddCmd())
@@ -118,6 +119,40 @@ func oppCreateCmd() *cobra.Command {
 	return cmd
 }
 
+func oppUpdateCmd() *cobra.Command {
+	var title, desc string
+	var stage int64
+	var bid float64
+	cmd := &cobra.Command{
+		Use:   "update OPPORTUNITY_ID",
+		Short: "Update opportunity title, description, stage, or bid",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.UpdateOpportunity(cmd.Context(), args[0], onlyoffice.UpdateOpportunityParams{
+				Title:       title,
+				Description: desc,
+				StageID:     stage,
+				BidValue:    bid,
+				BidValueSet: cmd.Flags().Changed("bid"),
+			})
+			if err != nil {
+				return err
+			}
+			printObject(out)
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&title, "title", "", "new title")
+	cmd.Flags().StringVar(&desc, "description", "", "new description")
+	cmd.Flags().Int64Var(&stage, "stage", 0, "pipeline stage id")
+	cmd.Flags().Float64Var(&bid, "bid", 0, "bid value")
+	return cmd
+}
+
 func oppDeleteCmd() *cobra.Command {
 	return &cobra.Command{
 		Use:     "delete OPPORTUNITY_ID [OPPORTUNITY_ID...]",

http.go

@@ -244,6 +244,58 @@ func (c *Client) putJSONObject(ctx context.Context, path string, body any) (map[
 	return unmarshalResponseObject(raw)
 }
 
+// postJSONObject issues an authenticated POST with JSON body and decodes response.
+func (c *Client) postJSONObject(ctx context.Context, path string, body any) (map[string]any, error) {
+	raw, err := c.postJSON(ctx, path, body)
+	if err != nil {
+		return nil, err
+	}
+	return unmarshalResponseObject(raw)
+}
+
+// postJSON issues an authenticated POST with application/json body.
+func (c *Client) postJSON(ctx context.Context, path string, body any) (json.RawMessage, error) {
+	auth, err := c.authHeader()
+	if err != nil {
+		return nil, err
+	}
+	var rdr io.Reader
+	switch b := body.(type) {
+	case nil:
+		rdr = strings.NewReader("{}")
+	case []byte:
+		rdr = bytes.NewReader(b)
+	case string:
+		rdr = strings.NewReader(b)
+	default:
+		buf, err := json.Marshal(b)
+		if err != nil {
+			return nil, err
+		}
+		rdr = bytes.NewReader(buf)
+	}
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.baseURL()+path, rdr)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Authorization", auth)
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	raw, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	if resp.StatusCode >= 400 {
+		return nil, fmt.Errorf("POST JSON %s: %d %s", path, resp.StatusCode, truncate(string(raw), 400))
+	}
+	return raw, nil
+}
+
 // putJSON issues an authenticated PUT with application/json body.
 func (c *Client) putJSON(ctx context.Context, path string, body any) (json.RawMessage, error) {
 	auth, err := c.authHeader()

invoices.go

@@ -0,0 +1,264 @@
+package onlyoffice
+
+// CRM Invoices and invoice catalog items (billing).
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+// InvoiceLine is one line on a create-invoice request.
+type InvoiceLine struct {
+	InvoiceItemID int64   `json:"invoiceItemID"`
+	InvoiceTax1ID int64   `json:"invoiceTax1ID"`
+	InvoiceTax2ID int64   `json:"invoiceTax2ID"`
+	Description   string  `json:"description"`
+	Quantity      float64 `json:"quantity"`
+	Price         float64 `json:"price"`
+	Discount      float64 `json:"discount"`
+	SortOrder     int     `json:"sortOrder"`
+}
+
+// CreateInvoiceParams holds fields for POST /api/2.0/crm/invoice.
+type CreateInvoiceParams struct {
+	Number              string
+	IssueDate           string // ISO-8601
+	DueDate             string // ISO-8601
+	ContactID           int64
+	ConsigneeID         int64 // 0 = omit
+	Language            string
+	Currency            string
+	ExchangeRate        float64
+	PurchaseOrderNumber string
+	Terms               string
+	Description         string
+	TemplateType        int
+	Lines               []InvoiceLine
+}
+
+// ListInvoices returns a page of CRM invoices and the total count.
+func (c *Client) ListInvoices(ctx context.Context, count, startIndex int) ([]map[string]any, int, error) {
+	q := url.Values{}
+	q.Set("count", strconv.Itoa(count))
+	q.Set("startIndex", strconv.Itoa(startIndex))
+	raw, err := c.getJSON(ctx, "/api/2.0/crm/invoice/filter.json?"+q.Encode())
+	if err != nil {
+		return nil, 0, err
+	}
+	var env struct {
+		Response []map[string]any `json:"response"`
+		Total    int              `json:"total"`
+	}
+	if err := json.Unmarshal(raw, &env); err != nil {
+		return nil, 0, err
+	}
+	total := env.Total
+	if total == 0 && len(env.Response) > 0 {
+		total = len(env.Response)
+	}
+	return env.Response, total, nil
+}
+
+// GetInvoice returns a single invoice by id (includes invoiceLines).
+func (c *Client) GetInvoice(ctx context.Context, id string) (map[string]any, error) {
+	return c.ResponseObject(ctx, fmt.Sprintf("/api/2.0/crm/invoice/%s.json", url.PathEscape(id)))
+}
+
+// CreateInvoice creates a draft invoice with the given lines.
+func (c *Client) CreateInvoice(ctx context.Context, p CreateInvoiceParams) (map[string]any, error) {
+	if p.ContactID == 0 {
+		return nil, fmt.Errorf("contactId is required")
+	}
+	if p.Number == "" {
+		return nil, fmt.Errorf("number is required")
+	}
+	if len(p.Lines) == 0 {
+		return nil, fmt.Errorf("at least one invoice line is required")
+	}
+	if p.Language == "" {
+		p.Language = "de-DE"
+	}
+	if p.Currency == "" {
+		p.Currency = "EUR"
+	}
+	if p.ExchangeRate == 0 {
+		p.ExchangeRate = 1
+	}
+	body := map[string]any{
+		"number":              p.Number,
+		"issueDate":           p.IssueDate,
+		"dueDate":             p.DueDate,
+		"contactId":           p.ContactID,
+		"language":            p.Language,
+		"currency":            p.Currency,
+		"exchangeRate":        p.ExchangeRate,
+		"purchaseOrderNumber": p.PurchaseOrderNumber,
+		"terms":               p.Terms,
+		"description":         p.Description,
+		"templateType":        p.TemplateType,
+		"invoiceLines":        p.Lines,
+	}
+	if p.ConsigneeID != 0 {
+		body["consigneeId"] = p.ConsigneeID
+	}
+	return c.postJSONObject(ctx, "/api/2.0/crm/invoice", body)
+}
+
+// DeleteInvoice removes an invoice by id.
+func (c *Client) DeleteInvoice(ctx context.Context, id string) (map[string]any, error) {
+	return c.deleteObject(ctx, fmt.Sprintf("/api/2.0/crm/invoice/%s.json", url.PathEscape(id)))
+}
+
+// ListInvoiceItems returns catalog invoice items.
+func (c *Client) ListInvoiceItems(ctx context.Context, count, startIndex int) ([]map[string]any, int, error) {
+	q := url.Values{}
+	q.Set("count", strconv.Itoa(count))
+	q.Set("startIndex", strconv.Itoa(startIndex))
+	raw, err := c.getJSON(ctx, "/api/2.0/crm/invoiceitem/filter.json?"+q.Encode())
+	if err != nil {
+		return nil, 0, err
+	}
+	var env struct {
+		Response []map[string]any `json:"response"`
+		Total    int              `json:"total"`
+	}
+	if err := json.Unmarshal(raw, &env); err != nil {
+		return nil, 0, err
+	}
+	total := env.Total
+	if total == 0 && len(env.Response) > 0 {
+		total = len(env.Response)
+	}
+	return env.Response, total, nil
+}
+
+// CreateInvoiceItem creates a reusable catalog line item.
+func (c *Client) CreateInvoiceItem(ctx context.Context, title, description string, price float64, currency string) (map[string]any, error) {
+	if title == "" {
+		return nil, fmt.Errorf("title is required")
+	}
+	if currency == "" {
+		currency = "EUR"
+	}
+	fields := url.Values{}
+	fields.Set("title", title)
+	fields.Set("description", description)
+	fields.Set("price", strconv.FormatFloat(price, 'f', 2, 64))
+	fields.Set("currency", currency)
+	fields.Set("stockKeepingUnit", "")
+	fields.Set("trackInventory", "false")
+	fields.Set("quantity", "0")
+	fields.Set("invoiceTax1ID", "0")
+	fields.Set("invoiceTax2ID", "0")
+	return c.postFormObject(ctx, "/api/2.0/crm/invoiceitem", fields)
+}
+
+// DeleteInvoiceItem removes a catalog invoice item.
+func (c *Client) DeleteInvoiceItem(ctx context.Context, id string) (map[string]any, error) {
+	return c.deleteObject(ctx, fmt.Sprintf("/api/2.0/crm/invoiceitem/%s.json", url.PathEscape(id)))
+}
+
+// AddContactAddress attaches a postal address to a contact.
+// category: Home|Postal|Office|Billing|Other|Work (or numeric string).
+func (c *Client) AddContactAddress(ctx context.Context, contactID, street, city, state, zip, country, category string, isPrimary bool) (map[string]any, error) {
+	if category == "" {
+		category = "Billing"
+	}
+	fields := url.Values{}
+	fields.Set("street", street)
+	fields.Set("city", city)
+	fields.Set("state", state)
+	fields.Set("zip", zip)
+	fields.Set("country", country)
+	fields.Set("category", category)
+	fields.Set("isPrimary", strconv.FormatBool(isPrimary))
+	return c.postFormObject(ctx, fmt.Sprintf("/api/2.0/crm/contact/%s/address", url.PathEscape(contactID)), fields)
+}
+
+// UpdateCompany updates company name and optional about text.
+func (c *Client) UpdateCompany(ctx context.Context, companyID, name, about string) (map[string]any, error) {
+	fields := url.Values{}
+	fields.Set("companyName", name)
+	if about != "" {
+		fields.Set("about", about)
+	}
+	return c.putFormObject(ctx, fmt.Sprintf("/api/2.0/crm/contact/company/%s.json", url.PathEscape(companyID)), fields)
+}
+
+// UpdateOpportunityParams are optional fields for UpdateOpportunity.
+// Zero/empty values mean "keep existing" except BidValueSet.
+type UpdateOpportunityParams struct {
+	Title       string
+	Description string
+	StageID     int64
+	BidValue    float64
+	BidValueSet bool
+}
+
+// UpdateOpportunity loads a deal and PUTs updated fields.
+func (c *Client) UpdateOpportunity(ctx context.Context, id string, p UpdateOpportunityParams) (map[string]any, error) {
+	opp, err := c.GetOpportunity(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	title := p.Title
+	if title == "" {
+		title = stringField(opp, "title")
+	}
+	body := opportunityUpdateBody(opp, title)
+	if p.Description != "" {
+		body["description"] = p.Description
+	}
+	if p.StageID != 0 {
+		body["stageid"] = p.StageID
+	}
+	if p.BidValueSet {
+		body["bidValue"] = p.BidValue
+	}
+	return c.putJSONObject(ctx, fmt.Sprintf("/api/2.0/crm/opportunity/%s.json", url.PathEscape(id)), body)
+}
+
+// InvoiceContactName extracts displayName from nested contact on an invoice row.
+func InvoiceContactName(inv map[string]any) string {
+	if m, ok := inv["contact"].(map[string]any); ok {
+		return stringField(m, "displayName")
+	}
+	return ""
+}
+
+// InvoiceStatusTitle extracts status.title from an invoice row.
+func InvoiceStatusTitle(inv map[string]any) string {
+	if m, ok := inv["status"].(map[string]any); ok {
+		return stringField(m, "title")
+	}
+	return ""
+}
+
+// FlattenInvoiceRow copies nested fields for table output.
+func FlattenInvoiceRow(inv map[string]any) map[string]any {
+	out := map[string]any{}
+	for k, v := range inv {
+		out[k] = v
+	}
+	out["contactName"] = InvoiceContactName(inv)
+	out["statusTitle"] = InvoiceStatusTitle(inv)
+	if cur, ok := inv["currency"].(map[string]any); ok {
+		out["currency"] = stringField(cur, "abbreviation")
+	}
+	return out
+}
+
+// FindInvoiceItemByTitle returns the first catalog item with an exact title match.
+func FindInvoiceItemByTitle(items []map[string]any, title string) map[string]any {
+	want := strings.TrimSpace(title)
+	for _, it := range items {
+		if strings.TrimSpace(stringField(it, "title")) == want {
+			return it
+		}
+	}
+	return nil
+}