diff --git a/internal/domain/main-entities/auth-partner/dto.go b/internal/domain/main-entities/auth-partner/dto.go
new file mode 100644
index 00000000..651ca4b7
--- /dev/null
+++ b/internal/domain/main-entities/auth-partner/dto.go
@@ -0,0 +1,67 @@
+package authpartner
+
+import (
+	// internal - domain - main-entities
+	ecore "simrs-vx/internal/domain/base-entities/core"
+)
+
+type CreateDto struct {
+	Code      string `json:"code"`
+	Name      string `json:"name"`
+	SecretKey string `json:"secretKey"`
+}
+
+type ReadListDto struct {
+	FilterDto
+	Includes   string `json:"includes"`
+	Pagination ecore.Pagination
+}
+
+type FilterDto struct {
+	Code *string `json:"code"`
+	Name *string `json:"name"`
+}
+
+type ReadDetailDto struct {
+	Id uint16 `json:"id"`
+}
+
+type UpdateDto struct {
+	Id uint16 `json:"id"`
+	CreateDto
+}
+
+type DeleteDto struct {
+	Id uint16 `json:"id"`
+}
+
+type MetaDto struct {
+	PageNumber int `json:"page_number"`
+	PageSize   int `json:"page_size"`
+	Count      int `json:"count"`
+}
+
+type ResponseDto struct {
+	ecore.Main
+	Code      string `json:"code"`
+	Name      string `json:"name"`
+	SecretKey string `json:"secretKey"`
+}
+
+func (d AuthPartner) ToResponse() ResponseDto {
+	resp := ResponseDto{
+		Code:      d.Code,
+		Name:      d.Name,
+		SecretKey: d.SecretKey,
+	}
+	resp.Main = d.Main
+	return resp
+}
+
+func ToResponseList(data []AuthPartner) []ResponseDto {
+	resp := make([]ResponseDto, len(data))
+	for i, u := range data {
+		resp[i] = u.ToResponse()
+	}
+	return resp
+}
diff --git a/internal/domain/main-entities/auth-partner/entity.go b/internal/domain/main-entities/auth-partner/entity.go
new file mode 100644
index 00000000..3a8cf4e6
--- /dev/null
+++ b/internal/domain/main-entities/auth-partner/entity.go
@@ -0,0 +1,12 @@
+package authpartner
+
+import (
+	ecore "simrs-vx/internal/domain/base-entities/core"
+)
+
+type AuthPartner struct {
+	ecore.Main        // adjust this according to the needs
+	Code       string `json:"code" gorm:"size:50"`
+	Name       string `json:"name" gorm:"size:100"`
+	SecretKey  string `json:"secretKey" gorm:"size:255"`
+}
diff --git a/internal/domain/main-entities/ext-user/dto.go b/internal/domain/main-entities/ext-user/dto.go
new file mode 100644
index 00000000..4b434c55
--- /dev/null
+++ b/internal/domain/main-entities/ext-user/dto.go
@@ -0,0 +1,71 @@
+package extuser
+
+import (
+	// internal - domain - main-entities
+	ecore "simrs-vx/internal/domain/base-entities/core"
+	eap "simrs-vx/internal/domain/main-entities/auth-partner"
+)
+
+type CreateDto struct {
+	Name             string `json:"name"`
+	AuthPartner_Code string `json:"authPartner_code"`
+	User_Name        string `json:"user_name"`
+}
+
+type ReadListDto struct {
+	FilterDto
+	Includes   string `json:"includes"`
+	Pagination ecore.Pagination
+}
+
+type FilterDto struct {
+	Name             *string `json:"name"`
+	AuthPartner_Code *string `json:"authPartner_code"`
+	User_Name        *string `json:"user_name"`
+}
+
+type ReadDetailDto struct {
+	Id uint `json:"id"`
+}
+
+type UpdateDto struct {
+	Id uint `json:"id"`
+	CreateDto
+}
+
+type DeleteDto struct {
+	Id uint `json:"id"`
+}
+
+type MetaDto struct {
+	PageNumber int `json:"page_number"`
+	PageSize   int `json:"page_size"`
+	Count      int `json:"count"`
+}
+
+type ResponseDto struct {
+	ecore.Main
+	Name              string          `json:"name"`
+	AuthPartner_Code  string          `json:"authPartner_code"`
+	AuthPartner       *eap.AuthPartner `json:"authPartner,omitempty"`
+	User_Name         string          `json:"user_name"`
+}
+
+func (d ExtUser) ToResponse() ResponseDto {
+	resp := ResponseDto{
+		Name:              d.Name,
+		AuthPartner_Code:  d.AuthPartner_Code,
+		AuthPartner:       d.AuthPartner,
+		User_Name:         d.User_Name,
+	}
+	resp.Main = d.Main
+	return resp
+}
+
+func ToResponseList(data []ExtUser) []ResponseDto {
+	resp := make([]ResponseDto, len(data))
+	for i, u := range data {
+		resp[i] = u.ToResponse()
+	}
+	return resp
+}
\ No newline at end of file
diff --git a/internal/domain/main-entities/ext-user/entity.go b/internal/domain/main-entities/ext-user/entity.go
new file mode 100644
index 00000000..ae293667
--- /dev/null
+++ b/internal/domain/main-entities/ext-user/entity.go
@@ -0,0 +1,16 @@
+package extuser
+
+import (
+	ecore "simrs-vx/internal/domain/base-entities/core"
+	eap "simrs-vx/internal/domain/main-entities/auth-partner"
+	eau "simrs-vx/internal/domain/main-entities/user"
+)
+
+type ExtUser struct {
+	ecore.Main                        // adjust this according to the needs
+	Name             string           `json:"name" gorm:"size:100"`
+	AuthPartner_Code string           `json:"authPartner_code" gorm:"size:30"`
+	AuthPartner      *eap.AuthPartner `json:"authPartner,omitempty" gorm:"foreignKey:AuthPartner_Code;references:Code"`
+	User_Name        string           `json:"user_name" gorm:"size:50"`
+	User             *eau.User        `json:"user,omitempty" gorm:"foreignKey:User_Name;references:Name"`
+}