diff --git a/schemas/connection_v01.json b/schemas/connection_v01.json
index 13d4224..2b84629 100644
--- a/schemas/connection_v01.json
+++ b/schemas/connection_v01.json
@@ -21,9 +21,6 @@
       ],
       "minLength": 6,
       "maxLength": 256
-    },
-    "connectionInstance": {
-      "$ref": "#/definitions/ConnectionInstance"
     }
   },
   "required": [
@@ -2907,76 +2904,6 @@
         "additionalProperties": false
       },
       "additionalItems": false
-    },
-    "ConnectionInstance": {
-      "title": "Connection Instance",
-      "description": "Pre-defined connection instance for system adapter.",
-      "type": "object",
-      "required": [
-        "id",
-        "policy"
-      ],
-      "properties": {
-        "id": {
-          "title": "Adapter ID",
-          "description": "The 'id' field identifies the adapter universally. The 'id' MUST have a namespace prefix separated from an identifier with a colon. The format is '<publisher_namespace>:<adapter_id>'.",
-          "type": "string",
-          "pattern": "^[A-Z][A-Z0-9_]{10,32}$"
-        },
-        "policy": {
-          "description": "policy points to the name of the pre-defined managed security policy being used. policy should not be used in case of nonManaged security policies.",
-          "type": "string",
-          "enum": [
-            "OCI_SERVICE_INVOCATION",
-            "OCI_SIGNATURE_VERSION1",
-            "NONE",
-            "OAUTH2.0_CLIENT_CREDENTIALS",
-            "OAUTH_CLIENT_CREDENTIALS"
-          ]
-        },
-        "instanceProperties": {
-          "type": "object",
-          "patternProperties": {
-            "^[a-zA-Z][a-zA-Z0-9\\-_]{0,100}$": {
-              "type": "string",
-              "maxLength": 1000
-            }
-          }
-        },
-        "attachments": {
-          "type": "array",
-          "minItems": 0,
-          "maxItems": 10,
-          "uniqueItems": true,
-          "items": {
-            "type": "object",
-            "required": [
-              "attachmentName",
-              "propertyName",
-              "content"
-            ],
-            "properties": {
-              "attachmentName": {
-                "type": "string",
-                "description":"attachment name.",
-                "maxLength": 100
-              },
-              "propertyName": {
-                "type": "string",
-                "description":"property name.",
-                "maxLength": 100
-              },
-              "content": {
-                "type": "string",
-                "description":"attachment content.",
-                "maxLength": 10000
-              }
-            },
-            "additionalProperties": false
-          }
-        }
-      },
-      "additionalProperties": false
     }
   }
 }
diff --git a/schemas/info_v01.json b/schemas/info_v01.json
index 9e32536..d394107 100644
--- a/schemas/info_v01.json
+++ b/schemas/info_v01.json
@@ -61,11 +61,6 @@
         "1.0"
       ]
     },
-    "systemAdapter": {
-      "type": "boolean",
-      "title": "System Adapter",
-      "description": "This setting allows the adapter runs as a system adapter."
-    },
     "categories": {
       "title": "Categories",
       "description": "The categories that applies to the adapter's capabilities, typically associated with the third party system for which the adapter provides integration functionality.",
diff --git a/schemas/mainADD_v01.json b/schemas/mainADD_v01.json
index 96e1252..2ecd391 100644
--- a/schemas/mainADD_v01.json
+++ b/schemas/mainADD_v01.json
@@ -75,52 +75,6 @@
           }
         }
       }
-    },
-    {
-      "$comment": "connection instance is required for system connection.",
-      "if": {
-        "required": [ "info" ],
-        "properties": {
-          "info": {
-            "required": [ "systemAdapter" ],
-            "properties": {
-              "systemAdapter": {
-                "const": true
-              }
-            }
-          }
-        }
-      },
-      "then": {
-        "properties": {
-          "connection": {
-            "required": [ "connectionInstance" ]
-          }
-        }
-      }
-    },
-    {
-      "$comment": "connection instance should not present for non system connection.",
-      "if": {
-        "properties": {
-          "info": {
-            "properties": {
-              "systemAdapter": {
-                "const": false
-              }
-            }
-          }
-        }
-      },
-      "then": {
-        "not": {
-          "properties": {
-            "connection": {
-              "required": [ "connectionInstance" ]
-            }
-          }
-        }
-      }
     }
   ],
   "definitions": {