diff --git a/api/api.yaml b/api/api.yaml
index bea2592..d15d0c7 100644
--- a/api/api.yaml
+++ b/api/api.yaml
@@ -7255,6 +7255,7 @@ components:
         - "installation.deleted"
         - "read.schedule.paused"
         - "read.backfill.done"
+        - "read.backfill.error"
         - "read.triggered.done"
         - "read.triggered.error"
         - "write.async.done"
diff --git a/api/generated/api.bundled.json b/api/generated/api.bundled.json
index 491c58f..08c8528 100644
--- a/api/generated/api.bundled.json
+++ b/api/generated/api.bundled.json
@@ -10332,6 +10332,7 @@
           "installation.deleted",
           "read.schedule.paused",
           "read.backfill.done",
+          "read.backfill.error",
           "read.triggered.done",
           "read.triggered.error",
           "write.async.done",
diff --git a/api/generated/api.json b/api/generated/api.json
index 9f0677d..94620db 100644
--- a/api/generated/api.json
+++ b/api/generated/api.json
@@ -61929,6 +61929,7 @@
                       "installation.deleted",
                       "read.schedule.paused",
                       "read.backfill.done",
+                      "read.backfill.error",
                       "read.triggered.done",
                       "read.triggered.error",
                       "write.async.done",
@@ -61993,6 +61994,7 @@
                         "installation.deleted",
                         "read.schedule.paused",
                         "read.backfill.done",
+                        "read.backfill.error",
                         "read.triggered.done",
                         "read.triggered.error",
                         "write.async.done",
@@ -62669,6 +62671,7 @@
                 "installation.deleted",
                 "read.schedule.paused",
                 "read.backfill.done",
+                "read.backfill.error",
                 "read.triggered.done",
                 "read.triggered.error",
                 "write.async.done",
@@ -62719,6 +62722,7 @@
                           "installation.deleted",
                           "read.schedule.paused",
                           "read.backfill.done",
+                          "read.backfill.error",
                           "read.triggered.done",
                           "read.triggered.error",
                           "write.async.done",
@@ -78323,6 +78327,7 @@
               "installation.deleted",
               "read.schedule.paused",
               "read.backfill.done",
+              "read.backfill.error",
               "read.triggered.done",
               "read.triggered.error",
               "write.async.done",
@@ -78369,6 +78374,7 @@
           "installation.deleted",
           "read.schedule.paused",
           "read.backfill.done",
+          "read.backfill.error",
           "read.triggered.done",
           "read.triggered.error",
           "write.async.done",
diff --git a/notifications/generated/notifications.json b/notifications/generated/notifications.json
index 47c4037..659a8fc 100644
--- a/notifications/generated/notifications.json
+++ b/notifications/generated/notifications.json
@@ -496,6 +496,99 @@
           }
         ]
       },
+      "ReadBackfillErrorData": {
+        "title": "Read Backfill Error Data",
+        "description": "Data payload for read.backfill.error notifications.",
+        "allOf": [
+          {
+            "title": "Installation Fields",
+            "type": "object",
+            "description": "Common fields present in installation-related notifications.",
+            "required": [
+              "projectId",
+              "provider",
+              "integrationId",
+              "integrationName",
+              "installationId",
+              "groupRef",
+              "groupName",
+              "connectionId",
+              "consumerRef",
+              "consumerName"
+            ],
+            "properties": {
+              "projectId": {
+                "type": "string",
+                "description": "The Ampersand Project ID.",
+                "example": "550e8400-e29b-41d4-a716-446655440000"
+              },
+              "provider": {
+                "type": "string",
+                "description": "The SaaS API that we are integrating with.",
+                "example": "salesforce"
+              },
+              "integrationId": {
+                "type": "string",
+                "description": "The ID of the integration.",
+                "example": "550e8400-e29b-41d4-a716-446655440000"
+              },
+              "integrationName": {
+                "type": "string",
+                "description": "The name of the integration.",
+                "example": "Salesforce Integration"
+              },
+              "installationId": {
+                "type": "string",
+                "description": "The ID of the Ampersand installation.",
+                "example": "550e8400-e29b-41d4-a716-446655440000"
+              },
+              "connectionId": {
+                "type": "string",
+                "description": "The ID of the connection.",
+                "example": "550e8400-e29b-41d4-a716-446655440000"
+              },
+              "groupRef": {
+                "type": "string",
+                "description": "The ID that your app uses to identify the group of users.",
+                "example": "customer-group-ref"
+              },
+              "groupName": {
+                "type": "string",
+                "description": "The display name of the group of users.",
+                "example": "Customer Name"
+              },
+              "consumerRef": {
+                "type": "string",
+                "description": "The reference ID of the consumer that triggered the notification.",
+                "example": "user-123"
+              },
+              "consumerName": {
+                "type": "string",
+                "description": "The name of the consumer that triggered the notification.",
+                "example": "John Doe"
+              }
+            }
+          },
+          {
+            "type": "object",
+            "required": [
+              "objectName"
+            ],
+            "properties": {
+              "objectName": {
+                "type": "string",
+                "description": "The name of the object for which the backfill failed.",
+                "example": "Account"
+              },
+              "error": {
+                "type": "string",
+                "description": "The error that occurred during the backfill.",
+                "example": "Authentication failed"
+              }
+            }
+          }
+        ]
+      },
       "ReadSchedulePausedData": {
         "title": "Read Schedule Paused Data",
         "description": "Data payload for read.schedule.paused notifications.",
@@ -2039,6 +2132,116 @@
           }
         }
       },
+      "ReadBackfillErrorNotificationPayload": {
+        "title": "Read Backfill Error Notification Payload",
+        "description": "Payload structure for read.backfill.error notifications sent to webhook destinations.\nFor Kinesis destinations, only the `data` object is sent.\n",
+        "type": "object",
+        "required": [
+          "notificationType",
+          "data"
+        ],
+        "properties": {
+          "notificationType": {
+            "type": "string",
+            "enum": [
+              "read.backfill.error"
+            ]
+          },
+          "data": {
+            "title": "Read Backfill Error Data",
+            "description": "Data payload for read.backfill.error notifications.",
+            "allOf": [
+              {
+                "title": "Installation Fields",
+                "type": "object",
+                "description": "Common fields present in installation-related notifications.",
+                "required": [
+                  "projectId",
+                  "provider",
+                  "integrationId",
+                  "integrationName",
+                  "installationId",
+                  "groupRef",
+                  "groupName",
+                  "connectionId",
+                  "consumerRef",
+                  "consumerName"
+                ],
+                "properties": {
+                  "projectId": {
+                    "type": "string",
+                    "description": "The Ampersand Project ID.",
+                    "example": "550e8400-e29b-41d4-a716-446655440000"
+                  },
+                  "provider": {
+                    "type": "string",
+                    "description": "The SaaS API that we are integrating with.",
+                    "example": "salesforce"
+                  },
+                  "integrationId": {
+                    "type": "string",
+                    "description": "The ID of the integration.",
+                    "example": "550e8400-e29b-41d4-a716-446655440000"
+                  },
+                  "integrationName": {
+                    "type": "string",
+                    "description": "The name of the integration.",
+                    "example": "Salesforce Integration"
+                  },
+                  "installationId": {
+                    "type": "string",
+                    "description": "The ID of the Ampersand installation.",
+                    "example": "550e8400-e29b-41d4-a716-446655440000"
+                  },
+                  "connectionId": {
+                    "type": "string",
+                    "description": "The ID of the connection.",
+                    "example": "550e8400-e29b-41d4-a716-446655440000"
+                  },
+                  "groupRef": {
+                    "type": "string",
+                    "description": "The ID that your app uses to identify the group of users.",
+                    "example": "customer-group-ref"
+                  },
+                  "groupName": {
+                    "type": "string",
+                    "description": "The display name of the group of users.",
+                    "example": "Customer Name"
+                  },
+                  "consumerRef": {
+                    "type": "string",
+                    "description": "The reference ID of the consumer that triggered the notification.",
+                    "example": "user-123"
+                  },
+                  "consumerName": {
+                    "type": "string",
+                    "description": "The name of the consumer that triggered the notification.",
+                    "example": "John Doe"
+                  }
+                }
+              },
+              {
+                "type": "object",
+                "required": [
+                  "objectName"
+                ],
+                "properties": {
+                  "objectName": {
+                    "type": "string",
+                    "description": "The name of the object for which the backfill failed.",
+                    "example": "Account"
+                  },
+                  "error": {
+                    "type": "string",
+                    "description": "The error that occurred during the backfill.",
+                    "example": "Authentication failed"
+                  }
+                }
+              }
+            ]
+          }
+        }
+      },
       "ReadSchedulePausedNotificationPayload": {
         "title": "Read Schedule Paused Notification Payload",
         "description": "Payload structure for read.schedule.paused notifications sent to webhook destinations.\nFor Kinesis destinations, only the `data` object is sent.\n",
diff --git a/notifications/notifications.yaml b/notifications/notifications.yaml
index 7e91524..d9532aa 100644
--- a/notifications/notifications.yaml
+++ b/notifications/notifications.yaml
@@ -164,6 +164,27 @@ components:
               type: string
               description: The name of the object for which the backfill completed.
               example: Account
+    # Read backfill failed event data
+    ReadBackfillErrorData:
+      title: Read Backfill Error Data
+      description: Data payload for read.backfill.error notifications.
+      allOf:
+        - $ref: '#/components/schemas/InstallationFields'
+        - type: object
+
+          required:
+            - objectName
+            - error
+          properties:
+            objectName:
+              type: string
+              description: The name of the object for which the backfill failed.
+              example: Account
+            error:
+              type: string
+              description: The error that occurred during the backfill.
+              example: "Authentication failed"
+
     # Read schedule paused event data
     ReadSchedulePausedData:
       title: Read Schedule Paused Data
@@ -500,6 +521,22 @@ components:
         data:
           $ref: '#/components/schemas/ReadBackfillDoneData'
 
+    ReadBackfillErrorNotificationPayload:
+      title: Read Backfill Error Notification Payload
+      description: |
+        Payload structure for read.backfill.error notifications sent to webhook destinations.
+        For Kinesis destinations, only the `data` object is sent.
+      type: object
+      required:
+        - notificationType
+        - data
+      properties:
+        notificationType:
+          type: string
+          enum: [read.backfill.error]
+        data:
+          $ref: '#/components/schemas/ReadBackfillErrorData'
+
     ReadSchedulePausedNotificationPayload:
       title: Read Schedule Paused Notification Payload
       description: |