diff --git a/api/client.go b/api/client.go
index d5f4950..d48b940 100644
--- a/api/client.go
+++ b/api/client.go
@@ -9,6 +9,7 @@ import (
 type Client struct {
 	token          string
 	device         string
+	isDM           bool
 	resty          *resty.Client
 	apiBaseURL     string
 	fiscalEndpoint string
@@ -17,6 +18,7 @@ type Client struct {
 func NewClient(token string) *Client {
 	return &Client{
 		token:          token,
+		isDM:           false,
 		resty:          resty.New(),
 		apiBaseURL:     "https://kasa.vchasno.ua/api/v3",
 		fiscalEndpoint: "/fiscal/execute",
@@ -38,6 +40,7 @@ func NewDMClient(token, dmURL, device string) *Client {
 	return &Client{
 		token:          token,
 		device:         device,
+		isDM:           true,
 		resty:          restyClient,
 		apiBaseURL:     dmURL,
 		fiscalEndpoint: "/dm/execute",
diff --git a/api/fiscal.go b/api/fiscal.go
index 6f5581c..3b55189 100644
--- a/api/fiscal.go
+++ b/api/fiscal.go
@@ -20,6 +20,11 @@ func (e *APIError) Error() string {
 func (c *Client) executeRequest(ctx context.Context, request FiscalRequest, response interface{}) error {
 	request.Device = c.device
 
+	if c.isDM {
+		request.Ver = 6
+		request.Type = 1
+	}
+
 	reqJson, err := json.Marshal(request)
 	if err != nil {
 		return fmt.Errorf("failed to marshal request: %w", err)
@@ -71,8 +76,7 @@ func (c *Client) executeRequest(ctx context.Context, request FiscalRequest, resp
 func (c *Client) OpenShift(ctx context.Context, cashier string) (*SellResponse, error) {
 	request := FiscalRequest{
 		Fiscal: Fiscal{
-			Task:    TaskOpenShift,
-			Cashier: cashier,
+			Task: TaskOpenShift,
 		},
 	}
 
@@ -87,8 +91,7 @@ func (c *Client) OpenShift(ctx context.Context, cashier string) (*SellResponse,
 func (c *Client) CloseShift(ctx context.Context, cashier string) (*ZReportResponse, error) {
 	request := FiscalRequest{
 		Fiscal: Fiscal{
-			Task:    TaskZReport,
-			Cashier: cashier,
+			Task: TaskZReport,
 		},
 	}
 
diff --git a/api/requests.go b/api/requests.go
index ab8276b..10bdc18 100644
--- a/api/requests.go
+++ b/api/requests.go
@@ -1,8 +1,11 @@
 package api
 
 type FiscalRequest struct {
-	Source   string   `json:"source"`
+	Ver      int      `json:"ver,omitempty"`
+	Source   string   `json:"source,omitempty"`
 	Device   string   `json:"device,omitempty"`
+	Tag      string   `json:"tag,omitempty"`
+	Type     int      `json:"type,omitempty"`
 	Userinfo Userinfo `json:"userinfo,omitempty"`
 	Fiscal   Fiscal   `json:"fiscal"`
 }
@@ -14,7 +17,7 @@ type Userinfo struct {
 
 type Fiscal struct {
 	Task    int      `json:"task"`
-	Cashier string   `json:"cashier"`
+	Cashier string   `json:"cashier,omitempty"`
 	Receipt *Receipt `json:"receipt,omitempty"`
 }