diff --git a/samtranslator/model/eventsources/push.py b/samtranslator/model/eventsources/push.py
index 73b1df299d..8f0f1b804e 100644
--- a/samtranslator/model/eventsources/push.py
+++ b/samtranslator/model/eventsources/push.py
@@ -947,7 +947,7 @@ class Cognito(PushEventSource):
 
     property_types = {
         "UserPool": PropertyType(True, is_str()),
-        "Trigger": PropertyType(True, one_of(is_str(), list_of(is_str()))),
+        "Trigger": PropertyType(True, one_of(is_str(), list_of(is_str())), False),
     }
 
     def resources_to_link(self, resources):
diff --git a/tests/translator/input/cognito_userpool_with_event.yaml b/tests/translator/input/cognito_userpool_with_event.yaml
index 97cf8a5977..bfdd1401a2 100644
--- a/tests/translator/input/cognito_userpool_with_event.yaml
+++ b/tests/translator/input/cognito_userpool_with_event.yaml
@@ -2,8 +2,16 @@ Resources:
   UserPool:
     Type: AWS::Cognito::UserPool
     Properties:
-      LambdaConfig:
-        PreAuthentication: "Test"
+      UserPoolName: UserPoolName
+      Policies:
+        PasswordPolicy:
+          MinimumLength: 8
+      UsernameAttributes:
+        - email
+      Schema:
+        - AttributeDataType: String
+          Name: email
+          Required: false
   ImplicitApiFunction:
     Type: AWS::Serverless::Function
     Properties:
@@ -14,12 +22,12 @@ Resources:
         OneTrigger:
           Type: Cognito
           Properties:
-            UserPool: 
+            UserPool:
               Ref: UserPool
             Trigger: PreSignUp
         TwoTrigger:
           Type: Cognito
           Properties:
-            UserPool: 
+            UserPool:
               Ref: UserPool
-            Trigger: [Test1, Test2]        
\ No newline at end of file
+            Trigger: [PostConfirmation, VerifyAuthChallengeResponse]
diff --git a/tests/translator/input/error_cognito_trigger_invalid_type.yaml b/tests/translator/input/error_cognito_trigger_invalid_type.yaml
new file mode 100644
index 0000000000..0f1fb9d24a
--- /dev/null
+++ b/tests/translator/input/error_cognito_trigger_invalid_type.yaml
@@ -0,0 +1,28 @@
+Resources:
+  UserPool:
+    Type: AWS::Cognito::UserPool
+    Properties:
+      UserPoolName: UserPoolName
+      Policies:
+        PasswordPolicy:
+          MinimumLength: 8
+      UsernameAttributes:
+        - email
+      Schema:
+        - AttributeDataType: String
+          Name: email
+          Required: false
+  ImplicitApiFunction:
+    Type: AWS::Serverless::Function
+    Properties:
+      InlineCode: |
+        exports.handler = async () => ‘Hello World!'
+      Handler: index.handler
+      Runtime: nodejs12.x
+      Events:
+        OneTrigger:
+          Type: Cognito
+          Properties:
+            UserPool:
+              Ref: UserPool
+            Trigger: !Join [ "", [ "Pre", "Sign", "Up"] ]
diff --git a/tests/translator/output/aws-cn/cognito_userpool_with_event.json b/tests/translator/output/aws-cn/cognito_userpool_with_event.json
index 973838a752..9a9faea039 100644
--- a/tests/translator/output/aws-cn/cognito_userpool_with_event.json
+++ b/tests/translator/output/aws-cn/cognito_userpool_with_event.json
@@ -6,44 +6,60 @@
         "LambdaConfig": {
           "PreSignUp": {
             "Fn::GetAtt": [
-              "ImplicitApiFunction", "Arn"
+              "ImplicitApiFunction",
+              "Arn"
             ]
           },
-          "PreAuthentication": "Test",
-          "Test1": {
+          "PostConfirmation": {
             "Fn::GetAtt": [
               "ImplicitApiFunction",
               "Arn"
             ]
           },
-          "Test2": {
+          "VerifyAuthChallengeResponse": {
             "Fn::GetAtt": [
               "ImplicitApiFunction",
               "Arn"
             ]
           }
-        }
+        },
+        "Policies": {
+          "PasswordPolicy": {
+            "MinimumLength": 8
+          }
+        },
+        "Schema": [
+          {
+            "AttributeDataType": "String",
+            "Name": "email",
+            "Required": false
+          }
+        ],
+        "UsernameAttributes": [
+          "email"
+        ],
+        "UserPoolName": "UserPoolName"
       }
     },
     "ImplicitApiFunction": {
       "Type": "AWS::Lambda::Function",
       "Properties": {
-        "Handler": "index.gethtml", 
         "Code": {
-          "S3Bucket": "sam-demo-bucket", 
+          "S3Bucket": "sam-demo-bucket",
           "S3Key": "member_portal.zip"
-        }, 
+        },
+        "Handler": "index.gethtml",
         "Role": {
           "Fn::GetAtt": [
-            "ImplicitApiFunctionRole", 
+            "ImplicitApiFunctionRole",
             "Arn"
           ]
-        }, 
+        },
         "Runtime": "nodejs12.x",
         "Tags": [
           {
-            "Value": "SAM", 
-            "Key": "lambda:createdBy"
+            "Key": "lambda:createdBy",
+            "Value": "SAM"
           }
         ]
       }
@@ -51,15 +67,6 @@
     "ImplicitApiFunctionRole": {
       "Type": "AWS::IAM::Role",
       "Properties": {
-        "ManagedPolicyArns": [
-          "arn:aws-cn:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
-        ],
-        "Tags": [
-          {
-            "Value": "SAM",
-            "Key": "lambda:createdBy"
-          }
-        ],
         "AssumeRolePolicyDocument": {
           "Version": "2012-10-17",
           "Statement": [
@@ -75,9 +82,18 @@
               }
             }
           ]
-        }
+        },
+        "ManagedPolicyArns": [
+          "arn:aws-cn:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
+        ],
+        "Tags": [
+          {
+            "Key": "lambda:createdBy",
+            "Value": "SAM"
+          }
+        ]
       }
-    },    
+    },
     "ImplicitApiFunctionCognitoPermission": {
       "Type": "AWS::Lambda::Permission",
       "Properties": {
@@ -85,14 +101,14 @@
         "FunctionName": {
           "Ref": "ImplicitApiFunction"
         },
+        "Principal": "cognito-idp.amazonaws.com",
         "SourceArn": {
           "Fn::GetAtt": [
             "UserPool",
             "Arn"
           ]
-        },
-        "Principal": "cognito-idp.amazonaws.com"
+        }
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/tests/translator/output/aws-us-gov/cognito_userpool_with_event.json b/tests/translator/output/aws-us-gov/cognito_userpool_with_event.json
index 82a1838302..235b0084d1 100644
--- a/tests/translator/output/aws-us-gov/cognito_userpool_with_event.json
+++ b/tests/translator/output/aws-us-gov/cognito_userpool_with_event.json
@@ -6,44 +6,60 @@
         "LambdaConfig": {
           "PreSignUp": {
             "Fn::GetAtt": [
-              "ImplicitApiFunction", "Arn"
+              "ImplicitApiFunction",
+              "Arn"
             ]
           },
-          "PreAuthentication": "Test",
-          "Test1": {
+          "PostConfirmation": {
             "Fn::GetAtt": [
               "ImplicitApiFunction",
               "Arn"
             ]
           },
-          "Test2": {
+          "VerifyAuthChallengeResponse": {
             "Fn::GetAtt": [
               "ImplicitApiFunction",
               "Arn"
             ]
           }
-        }
+        },
+        "Policies": {
+          "PasswordPolicy": {
+            "MinimumLength": 8
+          }
+        },
+        "Schema": [
+          {
+            "AttributeDataType": "String",
+            "Name": "email",
+            "Required": false
+          }
+        ],
+        "UsernameAttributes": [
+          "email"
+        ],
+        "UserPoolName": "UserPoolName"
       }
     },
     "ImplicitApiFunction": {
-      "Type": "AWS::Lambda::Function", 
+      "Type": "AWS::Lambda::Function",
       "Properties": {
-        "Handler": "index.gethtml", 
         "Code": {
-          "S3Bucket": "sam-demo-bucket", 
+          "S3Bucket": "sam-demo-bucket",
           "S3Key": "member_portal.zip"
-        }, 
+        },
+        "Handler": "index.gethtml",
         "Role": {
           "Fn::GetAtt": [
-            "ImplicitApiFunctionRole", 
+            "ImplicitApiFunctionRole",
             "Arn"
           ]
-        }, 
+        },
         "Runtime": "nodejs12.x",
         "Tags": [
           {
-            "Value": "SAM", 
-            "Key": "lambda:createdBy"
+            "Key": "lambda:createdBy",
+            "Value": "SAM"
           }
         ]
       }
@@ -51,15 +67,6 @@
     "ImplicitApiFunctionRole": {
       "Type": "AWS::IAM::Role",
       "Properties": {
-        "ManagedPolicyArns": [
-          "arn:aws-us-gov:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
-        ],
-        "Tags": [
-          {
-            "Value": "SAM",
-            "Key": "lambda:createdBy"
-          }
-        ],
         "AssumeRolePolicyDocument": {
           "Version": "2012-10-17",
           "Statement": [
@@ -75,9 +82,18 @@
               }
             }
           ]
-        }
+        },
+        "ManagedPolicyArns": [
+          "arn:aws-us-gov:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
+        ],
+        "Tags": [
+          {
+            "Key": "lambda:createdBy",
+            "Value": "SAM"
+          }
+        ]
       }
-    },    
+    },
     "ImplicitApiFunctionCognitoPermission": {
       "Type": "AWS::Lambda::Permission",
       "Properties": {
@@ -85,14 +101,14 @@
         "FunctionName": {
           "Ref": "ImplicitApiFunction"
         },
+        "Principal": "cognito-idp.amazonaws.com",
         "SourceArn": {
           "Fn::GetAtt": [
             "UserPool",
             "Arn"
           ]
-        },
-        "Principal": "cognito-idp.amazonaws.com"
+        }
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/tests/translator/output/cognito_userpool_with_event.json b/tests/translator/output/cognito_userpool_with_event.json
index 277f38c37e..956742b7f2 100644
--- a/tests/translator/output/cognito_userpool_with_event.json
+++ b/tests/translator/output/cognito_userpool_with_event.json
@@ -6,44 +6,60 @@
         "LambdaConfig": {
           "PreSignUp": {
             "Fn::GetAtt": [
-              "ImplicitApiFunction", "Arn"
+              "ImplicitApiFunction",
+              "Arn"
             ]
           },
-          "PreAuthentication": "Test",
-          "Test1": {
+          "PostConfirmation": {
             "Fn::GetAtt": [
               "ImplicitApiFunction",
               "Arn"
             ]
           },
-          "Test2": {
+          "VerifyAuthChallengeResponse": {
             "Fn::GetAtt": [
               "ImplicitApiFunction",
               "Arn"
             ]
-          }          
-        }
+          }
+        },
+        "Policies": {
+          "PasswordPolicy": {
+            "MinimumLength": 8
+          }
+        },
+        "Schema": [
+          {
+            "AttributeDataType": "String",
+            "Name": "email",
+            "Required": false
+          }
+        ],
+        "UsernameAttributes": [
+          "email"
+        ],
+        "UserPoolName": "UserPoolName"
       }
     },
     "ImplicitApiFunction": {
-      "Type": "AWS::Lambda::Function", 
+      "Type": "AWS::Lambda::Function",
       "Properties": {
-        "Handler": "index.gethtml", 
         "Code": {
-          "S3Bucket": "sam-demo-bucket", 
+          "S3Bucket": "sam-demo-bucket",
           "S3Key": "member_portal.zip"
-        }, 
+        },
+        "Handler": "index.gethtml",
         "Role": {
           "Fn::GetAtt": [
-            "ImplicitApiFunctionRole", 
+            "ImplicitApiFunctionRole",
             "Arn"
           ]
-        }, 
+        },
         "Runtime": "nodejs12.x",
         "Tags": [
           {
-            "Value": "SAM", 
-            "Key": "lambda:createdBy"
+            "Key": "lambda:createdBy",
+            "Value": "SAM"
           }
         ]
       }
@@ -51,15 +67,6 @@
     "ImplicitApiFunctionRole": {
       "Type": "AWS::IAM::Role",
       "Properties": {
-        "ManagedPolicyArns": [
-          "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
-        ],
-        "Tags": [
-          {
-            "Value": "SAM",
-            "Key": "lambda:createdBy"
-          }
-        ],
         "AssumeRolePolicyDocument": {
           "Version": "2012-10-17",
           "Statement": [
@@ -75,9 +82,18 @@
               }
             }
           ]
-        }
+        },
+        "ManagedPolicyArns": [
+          "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
+        ],
+        "Tags": [
+          {
+            "Key": "lambda:createdBy",
+            "Value": "SAM"
+          }
+        ]
       }
-    },    
+    },
     "ImplicitApiFunctionCognitoPermission": {
       "Type": "AWS::Lambda::Permission",
       "Properties": {
@@ -85,14 +101,14 @@
         "FunctionName": {
           "Ref": "ImplicitApiFunction"
         },
+        "Principal": "cognito-idp.amazonaws.com",
         "SourceArn": {
           "Fn::GetAtt": [
             "UserPool",
             "Arn"
           ]
-        },
-        "Principal": "cognito-idp.amazonaws.com"
+        }
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/tests/translator/output/error_cognito_trigger_invalid_type.json b/tests/translator/output/error_cognito_trigger_invalid_type.json
new file mode 100644
index 0000000000..1a9bbdd385
--- /dev/null
+++ b/tests/translator/output/error_cognito_trigger_invalid_type.json
@@ -0,0 +1,8 @@
+{
+  "errors": [
+    {
+      "errorMessage": "Resource with id [ImplicitApiFunctionOneTrigger] is invalid. Type of property 'Trigger' is invalid."
+    }
+  ],
+  "errorMessage": "Invalid Serverless Application Specification document. Number of errors found: 1. Resource with id [ImplicitApiFunctionOneTrigger] is invalid. Type of property 'Trigger' is invalid."
+}
diff --git a/tests/translator/test_translator.py b/tests/translator/test_translator.py
index e22bff999d..25164234e0 100644
--- a/tests/translator/test_translator.py
+++ b/tests/translator/test_translator.py
@@ -664,6 +664,7 @@ def test_transform_success_no_side_effect(self, testcase, partition_with_region)
         "error_state_machine_with_cwe_invalid_dlq_type",
         "error_state_machine_with_cwe_both_dlq_property_provided",
         "error_state_machine_with_cwe_missing_dlq_property",
+        "error_cognito_trigger_invalid_type",
         "error_cognito_userpool_duplicate_trigger",
         "error_cognito_userpool_not_string",
         "error_api_duplicate_methods_same_path",