diff --git a/openapi.yaml b/openapi.yaml
index c845676..3594c5c 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -64,7 +64,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessPublicUsers'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -99,7 +99,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessPublicUser'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -140,7 +140,7 @@ paths:
                     format: int64
                     example: 112
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -169,7 +169,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessSbts'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -198,7 +198,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessCollection'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -235,7 +235,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessCollectionParticipants'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -272,7 +272,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessLastActivities'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -310,7 +310,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessHubs'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -380,7 +380,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessEventCreation'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -459,7 +459,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/EmptySuccess'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -502,7 +502,7 @@ paths:
         '200':
           description: Successful operation
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -544,7 +544,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/SuccessRewardLink'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -582,7 +582,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/CsbtItemByIndex'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -628,7 +628,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/CsbtItems'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':
@@ -658,7 +658,7 @@ paths:
               schema:
                 $ref: '#/components/schemas/CsbtCollectionState'
         '400':
-          description: Invalid query/path param provided
+          description: Invalid query/path/body param provided
         '404':
           description: Resource not found
         '500':