diff --git a/CHANGELOG.md b/CHANGELOG.md
index cce72191c..e56a94717 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [1.20.0](https://github.com/rudderlabs/rudder-config-schema/compare/v1.19.0...v1.20.0) (2023-04-04)
+
+
+### Features
+
+* **klaviyo:** make private API kay mandatory ([#501](https://github.com/rudderlabs/rudder-config-schema/issues/501)) ([a2d26b8](https://github.com/rudderlabs/rudder-config-schema/commit/a2d26b8d3a1e8faa463585545411b329ee1b950e))
+
+
+### Bug Fixes
+
+* impact error message and test update ([#499](https://github.com/rudderlabs/rudder-config-schema/issues/499)) ([de7d78f](https://github.com/rudderlabs/rudder-config-schema/commit/de7d78f67554f16c35bb0509fe0fd8f37a6adca2))
+
 ## 1.19.0 (2023-04-03)
 
 
diff --git a/package-lock.json b/package-lock.json
index 7b5a58d89..83560f82a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "rudder-config-schema",
-  "version": "1.19.0",
+  "version": "1.20.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "rudder-config-schema",
-      "version": "1.19.0",
+      "version": "1.20.0",
       "license": "MIT",
       "dependencies": {
         "ajv": "^8.12.0",
diff --git a/package.json b/package.json
index 0584f4d3e..b82af2e39 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rudder-config-schema",
-  "version": "1.19.0",
+  "version": "1.20.0",
   "description": "",
   "main": "src/index.ts",
   "private": true,
diff --git a/src/configurations/destinations/impact/schema.json b/src/configurations/destinations/impact/schema.json
index af10b3861..cd8ea1ea0 100644
--- a/src/configurations/destinations/impact/schema.json
+++ b/src/configurations/destinations/impact/schema.json
@@ -2,7 +2,7 @@
   "configSchema": {
     "$schema": "http://json-schema.org/draft-07/schema#",
     "type": "object",
-    "required": ["apiKey"],
+    "required": ["apiKey", "accountSID", "campaignId"],
     "properties": {
       "accountSID": {
         "type": "string",
diff --git a/src/configurations/destinations/impact/ui-config.json b/src/configurations/destinations/impact/ui-config.json
index 4b3e62640..4b5068795 100644
--- a/src/configurations/destinations/impact/ui-config.json
+++ b/src/configurations/destinations/impact/ui-config.json
@@ -7,7 +7,7 @@
           "type": "textInput",
           "label": "Account SID",
           "value": "accountSID",
-          "regex": "^(.{1,100})$",
+          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{1,100})$",
           "regexErrorMessage": "Invalid Account SID",
           "required": true,
           "placeholder": "e.g. saDbFeVZicnpPeGJ6M0JOTXFxTVN2QkdpWTJ3NENpNUlZ",
@@ -18,7 +18,7 @@
           "type": "textInput",
           "label": "API Key",
           "value": "apiKey",
-          "regex": "^(.{1,100})$",
+          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{1,100})$",
           "regexErrorMessage": "Invalid API Key",
           "required": true,
           "placeholder": "e.g: npPeGJ6M0JOjgAvfCs-XAYkh~dpWTJ",
@@ -29,7 +29,7 @@
           "type": "textInput",
           "label": "Campaign Id",
           "value": "campaignId",
-          "regex": "^[0-9]+$",
+          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^[0-9]+$",
           "regexErrorMessage": "Invalid Campaign Id",
           "required": true,
           "placeholder": "e.g: 34343",
@@ -40,7 +40,7 @@
           "type": "textInput",
           "label": "Impact App Id",
           "value": "impactAppId",
-          "regex": "^[0-9]+$",
+          "regex": "(^\\{\\{.*\\|\\|(.*?)\\}\\}$)|(^env[.].+)|^[0-9]+$|^$",
           "regexErrorMessage": "Invalid Impact App Id",
           "required": false,
           "placeholder": "e.g: 34343",
@@ -56,8 +56,8 @@
           "type": "textInput",
           "label": "Event Type Id",
           "value": "eventTypeId",
-          "regex": "^[0-9]+$",
-          "regexErrorMessage": "Invalid Account SID",
+          "regex": "(^\\{\\{.*\\|\\|(.*?)\\}\\}$)|(^env[.].+)|^[0-9]+$|^$",
+          "regexErrorMessage": "Invalid Event Type Id",
           "required": false,
           "placeholder": "e.g. 35355",
           "secret": false,
diff --git a/src/configurations/destinations/klaviyo/schema.json b/src/configurations/destinations/klaviyo/schema.json
index e98631006..375b85aa0 100644
--- a/src/configurations/destinations/klaviyo/schema.json
+++ b/src/configurations/destinations/klaviyo/schema.json
@@ -2,12 +2,16 @@
   "configSchema": {
     "$schema": "http://json-schema.org/draft-07/schema#",
     "type": "object",
-    "required": ["publicApiKey"],
+    "required": ["publicApiKey", "privateApiKey"],
     "properties": {
       "publicApiKey": {
         "type": "string",
         "pattern": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{1,100})$"
       },
+      "privateApiKey": {
+        "type": "string",
+        "pattern": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{1,100})$"
+      },
       "listId": {
         "type": "string",
         "pattern": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{0,100})$"
diff --git a/src/configurations/destinations/klaviyo/ui-config.json b/src/configurations/destinations/klaviyo/ui-config.json
index 8d95f8183..4e12b7f0e 100644
--- a/src/configurations/destinations/klaviyo/ui-config.json
+++ b/src/configurations/destinations/klaviyo/ui-config.json
@@ -18,8 +18,8 @@
           "type": "textInput",
           "label": "Private API Key",
           "value": "privateApiKey",
-          "regex": ".*",
-          "required": false,
+          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{1,100})$",
+          "required": true,
           "placeholder": "e.g. c59e3838",
           "secret": true,
           "footerNote": "Your Private API Key"
diff --git a/test/data/validation/destinations/impact.json b/test/data/validation/destinations/impact.json
index eb8a3182d..333b82d0b 100644
--- a/test/data/validation/destinations/impact.json
+++ b/test/data/validation/destinations/impact.json
@@ -32,7 +32,7 @@
       "accountSID": "dfsgertrtff3erfc34rfwf",
       "apiKey": "fghsdfgegvcergfvfdfsag",
       "campaignId": "23224",
-      "impactAppId": "rtfjb",
+      "impactAppId": false,
       "eventTypeId": "56446",
       "enableEmailHashing": true,
       "rudderToImpactProperty": [
@@ -54,9 +54,7 @@
       "installEventNames": [{ "eventName": "App Installed" }]
     },
     "result": false,
-    "err": [
-      "impactAppId must match pattern \"(^\\{\\{.*\\|\\|(.*?)\\}\\}$)|(^env[.].+)|^[0-9]+$|^$\""
-    ]
+    "err": ["impactAppId must be string"]
   },
   {
     "config": {
@@ -64,7 +62,7 @@
       "apiKey": "fghsdfgegvcergfvfdfsag",
       "campaignId": "23224",
       "impactAppId": "56446",
-      "eventTypeId": "rtfjb",
+      "eventTypeId": 43434,
       "enableEmailHashing": true,
       "rudderToImpactProperty": [
         {
@@ -85,9 +83,7 @@
       "installEventNames": [{ "eventName": "App Installed" }]
     },
     "result": false,
-    "err": [
-      "eventTypeId must match pattern \"(^\\{\\{.*\\|\\|(.*?)\\}\\}$)|(^env[.].+)|^[0-9]+$|^$\""
-    ]
+    "err": ["eventTypeId must be string"]
   },
   {
     "config": {
diff --git a/test/data/validation/destinations/klaviyo.json b/test/data/validation/destinations/klaviyo.json
index 2e3adbaed..fbab64aaf 100644
--- a/test/data/validation/destinations/klaviyo.json
+++ b/test/data/validation/destinations/klaviyo.json
@@ -1,6 +1,7 @@
 [
   {
     "config": {
+      "privateApiKey": "WfO9dsffsf1",
       "listId": "ior6v5j",
       "enforceEmailAsPrimary": true,
       "consent": "directmail",
@@ -31,6 +32,25 @@
       "useNativeSDK": { "web": true },
       "oneTrustCookieCategories": [{ "oneTrustCookieCategory": "" }]
     },
+    "result": false,
+    "err": [" must have required property 'privateApiKey'"]
+  },
+  {
+    "config": {
+      "publicApiKey": "WfO9f1",
+      "privateApiKey": "WfO9dsffsf1",
+      "listId": "ior6v5j",
+      "enforceEmailAsPrimary": true,
+      "consent": "directmail",
+      "smsConsent": false,
+      "sendPageAsTrack": true,
+      "additionalPageInfo": true,
+      "eventFilteringOption": "disable",
+      "whitelistedEvents": [{ "eventName": "" }],
+      "blacklistedEvents": [{ "eventName": "" }],
+      "useNativeSDK": { "web": true },
+      "oneTrustCookieCategories": [{ "oneTrustCookieCategory": "" }]
+    },
     "result": true
   }
 ]