diff --git a/package-toolkit/config/src/main/resources/Config.pkl b/package-toolkit/config/src/main/resources/Config.pkl
index 20e63b6160..b83c26a275 100644
--- a/package-toolkit/config/src/main/resources/Config.pkl
+++ b/package-toolkit/config/src/main/resources/Config.pkl
@@ -458,6 +458,9 @@ class Widget {
 
   /// SQL query to run to determine the widget's selectable content.
   query: String?
+
+  /// Whether to prevent the Test Authentication button from showing (true) or show it (false) for credential inputs.
+  isTestAuthenticationDisabled: Boolean?
 }
 
 /// Widget that allows you to enter arbitrary text into a single-line text input field,
@@ -965,10 +968,14 @@ class CredentialInput extends UIElement {
   /// Type of credential to be nested within the widget.
   hidden credType: String
 
+  /// Whether to show the button for testing authentication. (Default: true, show it)
+  hidden allowTestAuthentication: Boolean = true
+
   /// (Generated) Internal configuration for the UI's rendering.
   fixed ui {
     widget = "credential"
     credentialType = credType
+    isTestAuthenticationDisabled = !allowTestAuthentication
   }
 }
 
diff --git a/samples/packages/admin-export/src/main/resources/package.pkl b/samples/packages/admin-export/src/main/resources/package.pkl
index 4d85cd2eb2..03fb39b382 100644
--- a/samples/packages/admin-export/src/main/resources/package.pkl
+++ b/samples/packages/admin-export/src/main/resources/package.pkl
@@ -115,6 +115,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store to which to upload the exported file."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/adoption-export/src/main/resources/package.pkl b/samples/packages/adoption-export/src/main/resources/package.pkl
index ca7d83c85e..025502d339 100644
--- a/samples/packages/adoption-export/src/main/resources/package.pkl
+++ b/samples/packages/adoption-export/src/main/resources/package.pkl
@@ -274,6 +274,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store to which to upload the exported file."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/asset-export-basic/src/main/resources/package.pkl b/samples/packages/asset-export-basic/src/main/resources/package.pkl
index 2b032cc7ff..d2eb5d6488 100644
--- a/samples/packages/asset-export-basic/src/main/resources/package.pkl
+++ b/samples/packages/asset-export-basic/src/main/resources/package.pkl
@@ -148,6 +148,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store to which to upload the exported file(s)."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/asset-import/src/main/resources/package.pkl b/samples/packages/asset-import/src/main/resources/package.pkl
index a05a92ed0c..c224ceaefa 100644
--- a/samples/packages/asset-import/src/main/resources/package.pkl
+++ b/samples/packages/asset-import/src/main/resources/package.pkl
@@ -49,6 +49,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store from which to retrieve the file(s) containing metadata to be imported."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/cube-assets-builder/src/main/resources/package.pkl b/samples/packages/cube-assets-builder/src/main/resources/package.pkl
index 42146b6226..1981d87c08 100644
--- a/samples/packages/cube-assets-builder/src/main/resources/package.pkl
+++ b/samples/packages/cube-assets-builder/src/main/resources/package.pkl
@@ -72,6 +72,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store from which to retrieve the file(s) containing cube assets to be imported."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/lineage-builder/src/main/resources/package.pkl b/samples/packages/lineage-builder/src/main/resources/package.pkl
index 9d210272d7..0b28e83580 100644
--- a/samples/packages/lineage-builder/src/main/resources/package.pkl
+++ b/samples/packages/lineage-builder/src/main/resources/package.pkl
@@ -72,6 +72,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store from which to retrieve the file(s) containing lineage details to be imported."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/metadata-impact-report/src/main/resources/package.pkl b/samples/packages/metadata-impact-report/src/main/resources/package.pkl
index bb6ec7fa56..2c0dbec569 100644
--- a/samples/packages/metadata-impact-report/src/main/resources/package.pkl
+++ b/samples/packages/metadata-impact-report/src/main/resources/package.pkl
@@ -132,6 +132,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store to which to upload the exported file."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/openapi-spec-loader/src/main/resources/package.pkl b/samples/packages/openapi-spec-loader/src/main/resources/package.pkl
index db020218d9..1b936a54cc 100644
--- a/samples/packages/openapi-spec-loader/src/main/resources/package.pkl
+++ b/samples/packages/openapi-spec-loader/src/main/resources/package.pkl
@@ -83,6 +83,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Enter details for the object store from which to retrieve the OpenAPI spec containing metadata to be imported."
+          allowTestAuthentication = false
         }
       }
     }
diff --git a/samples/packages/relational-assets-builder/src/main/resources/package.pkl b/samples/packages/relational-assets-builder/src/main/resources/package.pkl
index e171508cbd..7f80679546 100644
--- a/samples/packages/relational-assets-builder/src/main/resources/package.pkl
+++ b/samples/packages/relational-assets-builder/src/main/resources/package.pkl
@@ -70,6 +70,7 @@ uiConfig {
           required = true
           credType = "csa-connectors-objectstore"
           helpText = "Select how you want to provide the file containing relational assets to be imported."
+          allowTestAuthentication = false
         }
       }
     }