diff --git a/src/configurations/destinations/mp/schema.json b/src/configurations/destinations/mp/schema.json
index 0b796dc76..942246cb8 100644
--- a/src/configurations/destinations/mp/schema.json
+++ b/src/configurations/destinations/mp/schema.json
@@ -6,7 +6,7 @@
     "properties": {
       "token": {
         "type": "string",
-        "pattern": "(^env[.].+)|^(.{1,100})$"
+        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{1,100}$"
       },
       "dataResidency": {
         "type": "string",
@@ -54,7 +54,7 @@
           "properties": {
             "property": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -66,7 +66,7 @@
           "properties": {
             "property": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -78,7 +78,7 @@
           "properties": {
             "property": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -90,7 +90,7 @@
           "properties": {
             "property": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -102,7 +102,7 @@
           "properties": {
             "property": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -121,14 +121,14 @@
       },
       "sourceName": {
         "type": "string",
-        "pattern": "(^env[.].+)|^(.{0,100})$"
+        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
       },
       "sessionReplayPercentage": {
         "type": "object",
         "properties": {
           "web": {
             "type": "string",
-            "pattern": "(^env[.].+)|^(100|[1-9]?[0-9])$"
+            "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\})(100|[1-9]?[0-9])$"
           }
         }
       },
@@ -143,7 +143,7 @@
       },
       "persistenceName": {
         "type": "string",
-        "pattern": "(^env[.].+)|^(.{0,100})$"
+        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
       },
       "secureCookie": {
         "type": "boolean",
@@ -185,7 +185,7 @@
           "properties": {
             "eventName": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -197,7 +197,7 @@
           "properties": {
             "eventName": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
             }
           }
         }
@@ -212,7 +212,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -224,7 +224,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -236,7 +236,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -248,7 +248,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -260,7 +260,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -272,7 +272,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -284,7 +284,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -296,7 +296,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -308,7 +308,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -320,7 +320,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -332,7 +332,7 @@
               "properties": {
                 "oneTrustCookieCategory": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -349,7 +349,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -361,7 +361,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -373,7 +373,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -385,7 +385,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -397,7 +397,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -409,7 +409,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -421,7 +421,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -433,7 +433,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -445,7 +445,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -457,7 +457,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -469,7 +469,7 @@
               "properties": {
                 "purpose": {
                   "type": "string",
-                  "pattern": "(^env[.].+)|^(.{0,100})$"
+                  "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                 }
               }
             }
@@ -496,7 +496,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -542,7 +542,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -588,7 +588,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -634,7 +634,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -680,7 +680,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -726,7 +726,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -772,7 +772,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -818,7 +818,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -864,7 +864,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -910,7 +910,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -956,7 +956,7 @@
                     "properties": {
                       "consent": {
                         "type": "string",
-                        "pattern": "(^env[.].+)|^(.{0,100})$"
+                        "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$"
                       }
                     }
                   }
@@ -1051,7 +1051,7 @@
           "properties": {
             "gdprApiToken": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{1,100})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{1,100}$"
             }
           },
           "required": ["gdprApiToken"]
@@ -1070,7 +1070,7 @@
           "properties": {
             "userDefinedPageEventTemplate": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,200})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,200}$"
             }
           },
           "required": ["userDefinedPageEventTemplate"]
@@ -1089,7 +1089,7 @@
           "properties": {
             "userDefinedScreenEventTemplate": {
               "type": "string",
-              "pattern": "(^env[.].+)|^(.{0,200})$"
+              "pattern": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,200}$"
             }
           },
           "required": ["userDefinedScreenEventTemplate"]
diff --git a/src/configurations/destinations/mp/ui-config.json b/src/configurations/destinations/mp/ui-config.json
index f0093b814..17324db0e 100644
--- a/src/configurations/destinations/mp/ui-config.json
+++ b/src/configurations/destinations/mp/ui-config.json
@@ -15,7 +15,7 @@
                     "type": "textInput",
                     "label": "Project Token",
                     "configKey": "token",
-                    "regex": "(^env[.].+)|^(.{1,100})$",
+                    "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{1,100}$",
                     "regexErrorMessage": "Invalid Project Token",
                     "placeholder": "c24f56ed817221606de5a5f0befe8b92",
                     "secret": true,
@@ -114,7 +114,7 @@
                     "type": "textInput",
                     "label": "Page Event Name Template",
                     "configKey": "userDefinedPageEventTemplate",
-                    "regex": "(^env[.].+)|^(.{0,200})$",
+                    "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,200}$",
                     "regexErrorMessage": "Invalid Page Event Name",
                     "required": true,
                     "default": "Viewed {{ category }} {{ name }} page",
@@ -146,7 +146,7 @@
                     "type": "textInput",
                     "label": "Screen Event Name Template",
                     "configKey": "userDefinedScreenEventTemplate",
-                    "regex": "(^env[.].+)|^(.{0,200})$",
+                    "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,200}$",
                     "regexErrorMessage": "Invalid Screen Event Name",
                     "required": true,
                     "default": "Viewed {{ category }} {{ name }} screen",
@@ -185,7 +185,7 @@
                     "configKey": "propIncrements",
                     "label": "Properties to increment in People",
                     "tagKey": "property",
-                    "regex": "^(.{0,100})$",
+                    "regex": "^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
                     "regexErrorMessage": "Invalid Property Name",
                     "placeholder": "e.g: Cart-Value"
                   },
@@ -201,7 +201,7 @@
                       }
                     ],
                     "tagKey": "property",
-                    "regex": "(^env[.].+)|^(.{0,100})$",
+                    "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
                     "regexErrorMessage": "Invalid Property Name",
                     "placeholder": "e.g: joiningDate"
                   }
@@ -296,7 +296,7 @@
                     },
                     "label": "GDPR API Token",
                     "configKey": "gdprApiToken",
-                    "regex": "(^env[.].+)|^(.{1,100})$",
+                    "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{1,100}$",
                     "regexErrorMessage": "Invalid GDPR API Token",
                     "required": true,
                     "placeholder": "e.g: 7vwaux7et2tkXXXX1o0qtbt1x97n2je",
@@ -441,7 +441,7 @@
           "type": "textInput",
           "label": "Source Name",
           "configKey": "sourceName",
-          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{0,100})$",
+          "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
           "regexErrorMessage": "Invalid Source Name",
           "required": false,
           "placeholder": "e.g: Rudder-JS",
@@ -451,7 +451,7 @@
           "type": "textInput",
           "label": "Percentage of SDK initializations that will qualify for replay data capture",
           "configKey": "sessionReplayPercentage",
-          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(100|[1-9]?[0-9])$",
+          "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\})(100|[1-9]?[0-9])$",
           "regexErrorMessage": "Invalid Percentage",
           "placeholder": "e.g: 1",
           "default": "0",
@@ -489,7 +489,7 @@
           "type": "textInput",
           "label": "Persistence Name",
           "configKey": "persistenceName",
-          "regex": "(^\\{\\{.*\\|\\|(.*)\\}\\}$)|(^env[.].+)|^(.{0,100})$",
+          "regex": "(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
           "note": "Enter a persistence name for the Mixpanel cookie."
         },
         {
@@ -504,7 +504,7 @@
           "configKey": "superProperties",
           "label": "Property to send as super Properties",
           "tagKey": "property",
-          "regex": "^(.{0,100})$",
+          "regex": "^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
           "regexErrorMessage": "Invalid Property Name",
           "placeholder": "e.g: residence"
         },
@@ -513,7 +513,7 @@
           "configKey": "peopleProperties",
           "label": "Traits to set as People Properties",
           "tagKey": "property",
-          "regex": "^(.{0,100})$",
+          "regex": "^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
           "regexErrorMessage": "Invalid Property Name",
           "placeholder": "e.g: address"
         },
@@ -522,7 +522,7 @@
           "configKey": "eventIncrements",
           "label": "Events to increment in People",
           "tagKey": "property",
-          "regex": "^(.{0,100})$",
+          "regex": "^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$",
           "regexErrorMessage": "Invalid Property Name",
           "placeholder": "e.g: Added-to-cart"
         }
diff --git a/test/data/validation/destinations/mp.json b/test/data/validation/destinations/mp.json
index 28df2859f..2bf358660 100644
--- a/test/data/validation/destinations/mp.json
+++ b/test/data/validation/destinations/mp.json
@@ -157,7 +157,9 @@
       }
     },
     "result": false,
-    "err": ["sourceName must match pattern \"(^env[.].+)|^(.{0,100})$\""]
+    "err": [
+      "sourceName must match pattern \"(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$\""
+    ]
   },
   {
     "config": {
@@ -512,7 +514,11 @@
         ]
       }
     },
-    "result": true
+    "result": false,
+    "err": [
+      "oneTrustCookieCategories.cloud.0.oneTrustCookieCategory must match pattern \"(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$\"",
+      "ketchConsentPurposes.cloud.0.purpose must match pattern \"(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$\""
+    ]
   },
   {
     "config": {
@@ -729,12 +735,12 @@
     },
     "result": false,
     "err": [
-      "sessionReplayPercentage.web must match pattern \"(^env[.].+)|^(100|[1-9]?[0-9])$\"",
-      "oneTrustCookieCategories.android.0.oneTrustCookieCategory must match pattern \"(^env[.].+)|^(.{0,100})$\"",
+      "sessionReplayPercentage.web must match pattern \"(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\})(100|[1-9]?[0-9])$\"",
+      "oneTrustCookieCategories.android.0.oneTrustCookieCategory must match pattern \"(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$\"",
       "oneTrustCookieCategories.ios.0.oneTrustCookieCategory must be string",
       "oneTrustCookieCategories.web must be array",
       "oneTrustCookieCategories.unity.0 must be object",
-      "ketchConsentPurposes.android.0.purpose must match pattern \"(^env[.].+)|^(.{0,100})$\"",
+      "ketchConsentPurposes.android.0.purpose must match pattern \"(^env[.].+)|^(?!.*\\{\\{.*\\|\\|(.*)\\}\\}).{0,100}$\"",
       "ketchConsentPurposes.ios.0.purpose must be string",
       "ketchConsentPurposes.web must be array",
       "ketchConsentPurposes.unity.0 must be object"