diff --git a/core/controllers/FeedbackController.go b/core/controllers/FeedbackController.go
index 81a38a3..7e5fb88 100644
--- a/core/controllers/FeedbackController.go
+++ b/core/controllers/FeedbackController.go
@@ -3,6 +3,7 @@ package controllers
 import (
 	"TSS-microservices/common"
 	feedback_form "TSS-microservices/core/http/requests/feedback-form"
+	feedback_response "TSS-microservices/core/http/responses/feedback"
 	"TSS-microservices/core/models"
 	"TSS-microservices/core/repositories"
 	"github.com/gin-gonic/gin"
@@ -122,18 +123,7 @@ func (controller *FeedbackController) GetById(context *gin.Context) {
 //     type: string
 // responses:
 //	 200:
-//	  description: list of feedback
-//	  schema:
-//	    type: object
-//	    properties:
-//	      data:
-//	        type: array
-//	        items:
-//	          "$ref": "#/definitions/FeedbackModel"
-//		  limit:
-//		    type: integer
-//		  offset:
-//		    type: integer
+//     "$ref": "#/responses/GetManyResponse"
 
 func (controller *FeedbackController) GetMany(context *gin.Context) {
 	limit, _ := strconv.Atoi(context.DefaultQuery("limit", "10"))
@@ -159,5 +149,5 @@ func (controller *FeedbackController) GetMany(context *gin.Context) {
 		return
 	}
 
-	context.JSON(http.StatusOK, gin.H{"data": feedback, "limit": limit, "offset": offset})
+	context.JSON(http.StatusOK, feedback_response.GetManyResponse{Body: feedback_response.GetManyResponseBody{Limit: limit, Offset: offset, Data: feedback}}.Body)
 }
diff --git a/core/controllers/HermesController.go b/core/controllers/HermesController.go
index 9368019..736b873 100644
--- a/core/controllers/HermesController.go
+++ b/core/controllers/HermesController.go
@@ -57,7 +57,7 @@ func (controller *HermesController) SendMail(context *gin.Context) {
 		mailTemplate.Subject = input.Subject
 	}
 
-	message, err := controller.handleMailMessage(mailTemplate, input.PlaceHolder)
+	message, err := controller.handleMailMessage(mailTemplate, input.Placeholder)
 
 	if err != nil {
 		context.JSON(common.ErrorHandlerHttpResponse(err))
diff --git a/core/http/requests/hermes-forms/SendMailFormRequest.go b/core/http/requests/hermes-forms/SendMailFormRequest.go
index 364d40f..5bde8f4 100644
--- a/core/http/requests/hermes-forms/SendMailFormRequest.go
+++ b/core/http/requests/hermes-forms/SendMailFormRequest.go
@@ -2,11 +2,22 @@ package hermes_forms
 
 type SendMailFormRequest struct {
 	// required: true
+	// type: string
 	Code string `json:"code" binding:"required"`
 	// required: true
-	Recipients  []string          `json:"recipients" binding:"required"`
-	PlaceHolder map[string]string `json:"placeholder" binding:"required"`
-	Subject     string            `json:"subject"`
+	// type: array
+	// items:
+	//   type: string
+	// example: ["email1@gmal.com", "email2@gmail.com"]
+	Recipients []string `json:"recipients" binding:"required"`
+	// required: false
+	// type: object
+	Placeholder map[string]string `json:"placeholder" binding:"required"`
+	// required: false
+	// type: string
+	// extensions:
+	//   x-note: All key must be capital the first character
+	Subject string `json:"subject"`
 }
 
 // swagger:parameters SendMail
diff --git a/core/http/responses/feedback/GetManyResponse.go b/core/http/responses/feedback/GetManyResponse.go
new file mode 100644
index 0000000..e20020c
--- /dev/null
+++ b/core/http/responses/feedback/GetManyResponse.go
@@ -0,0 +1,15 @@
+package feedback
+
+import "TSS-microservices/core/models"
+
+// swagger:response GetManyResponse
+type GetManyResponse struct {
+	// in: body
+	Body GetManyResponseBody `json:"body"`
+}
+
+type GetManyResponseBody struct {
+	Limit  int               `json:"limit"`
+	Offset int               `json:"offset"`
+	Data   []models.Feedback `json:"data"`
+}
diff --git a/docs/swagger.json b/docs/swagger.json
index 11a6001..ccc7971 100644
--- a/docs/swagger.json
+++ b/docs/swagger.json
@@ -64,24 +64,7 @@
         ],
         "responses": {
           "200": {
-            "description": "list of feedback",
-            "schema": {
-              "type": "object",
-              "properties": {
-                "data": {
-                  "type": "array",
-                  "items": {
-                    "$ref": "#/definitions/FeedbackModel"
-                  }
-                },
-                "limit": {
-                  "type": "integer"
-                },
-                "offset": {
-                  "type": "integer"
-                }
-              }
-            }
+            "$ref": "#/responses/GetManyResponse"
           }
         }
       },
@@ -417,6 +400,29 @@
       "x-go-name": "Feedback",
       "x-go-package": "TSS-microservices/core/models"
     },
+    "GetManyResponseBody": {
+      "type": "object",
+      "properties": {
+        "data": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/FeedbackModel"
+          },
+          "x-go-name": "Data"
+        },
+        "limit": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "Limit"
+        },
+        "offset": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "Offset"
+        }
+      },
+      "x-go-package": "TSS-microservices/core/http/responses/feedback"
+    },
     "NullTime": {
       "description": "NullTime implements the [Scanner] interface so\nit can be used as a scan destination, similar to [NullString].",
       "type": "object",
@@ -462,18 +468,23 @@
           "additionalProperties": {
             "type": "string"
           },
-          "x-go-name": "PlaceHolder"
+          "x-go-name": "Placeholder"
         },
         "recipients": {
           "type": "array",
           "items": {
             "type": "string"
           },
-          "x-go-name": "Recipients"
+          "x-go-name": "Recipients",
+          "example": [
+            "email1@gmal.com",
+            "email2@gmail.com"
+          ]
         },
         "subject": {
           "type": "string",
-          "x-go-name": "Subject"
+          "x-go-name": "Subject",
+          "x-note": "All key must be capital the first character"
         }
       },
       "x-go-package": "TSS-microservices/core/http/requests/hermes-forms"
@@ -532,6 +543,12 @@
     }
   },
   "responses": {
+    "GetManyResponse": {
+      "description": "",
+      "schema": {
+        "$ref": "#/definitions/GetManyResponseBody"
+      }
+    },
     "ValidationError": {
       "description": "A ValidationError is an error that is used when the required input fails validation.",
       "schema": {