diff --git a/api/swagger.yml b/api/swagger.yml
index e6f8cd51e07..d7e06729ea3 100644
--- a/api/swagger.yml
+++ b/api/swagger.yml
@@ -1027,6 +1027,7 @@ components:
         - pre_sign_support
         - pre_sign_support_ui
         - import_support
+        - import_validity_regex
       properties:
         blockstore_type:
           type: string
@@ -1042,6 +1043,8 @@ components:
           type: boolean
         import_support:
           type: boolean
+        import_validity_regex:
+          type: string
 
     VersionConfig:
       type: object
diff --git a/clients/java/api/openapi.yaml b/clients/java/api/openapi.yaml
index cc623284d48..b64bda191d5 100644
--- a/clients/java/api/openapi.yaml
+++ b/clients/java/api/openapi.yaml
@@ -7036,6 +7036,7 @@ components:
         blockstore_type: blockstore_type
         pre_sign_support_ui: true
         import_support: true
+        import_validity_regex: import_validity_regex
         default_namespace_prefix: default_namespace_prefix
         pre_sign_support: true
       properties:
@@ -7053,11 +7054,14 @@ components:
           type: boolean
         import_support:
           type: boolean
+        import_validity_regex:
+          type: string
       required:
       - blockstore_namespace_ValidityRegex
       - blockstore_namespace_example
       - blockstore_type
       - import_support
+      - import_validity_regex
       - pre_sign_support
       - pre_sign_support_ui
       type: object
diff --git a/clients/java/docs/StorageConfig.md b/clients/java/docs/StorageConfig.md
index 44d2024214e..6f176a63b5e 100644
--- a/clients/java/docs/StorageConfig.md
+++ b/clients/java/docs/StorageConfig.md
@@ -14,6 +14,7 @@ Name | Type | Description | Notes
 **preSignSupport** | **Boolean** |  | 
 **preSignSupportUi** | **Boolean** |  | 
 **importSupport** | **Boolean** |  | 
+**importValidityRegex** | **String** |  | 
 
 
 
diff --git a/clients/java/src/main/java/io/lakefs/clients/api/model/StorageConfig.java b/clients/java/src/main/java/io/lakefs/clients/api/model/StorageConfig.java
index a389f4e9a0a..c0a589f661b 100644
--- a/clients/java/src/main/java/io/lakefs/clients/api/model/StorageConfig.java
+++ b/clients/java/src/main/java/io/lakefs/clients/api/model/StorageConfig.java
@@ -57,6 +57,10 @@ public class StorageConfig {
   @SerializedName(SERIALIZED_NAME_IMPORT_SUPPORT)
   private Boolean importSupport;
 
+  public static final String SERIALIZED_NAME_IMPORT_VALIDITY_REGEX = "import_validity_regex";
+  @SerializedName(SERIALIZED_NAME_IMPORT_VALIDITY_REGEX)
+  private String importValidityRegex;
+
 
   public StorageConfig blockstoreType(String blockstoreType) {
     
@@ -219,6 +223,29 @@ public void setImportSupport(Boolean importSupport) {
   }
 
 
+  public StorageConfig importValidityRegex(String importValidityRegex) {
+    
+    this.importValidityRegex = importValidityRegex;
+    return this;
+  }
+
+   /**
+   * Get importValidityRegex
+   * @return importValidityRegex
+  **/
+  @javax.annotation.Nonnull
+  @ApiModelProperty(required = true, value = "")
+
+  public String getImportValidityRegex() {
+    return importValidityRegex;
+  }
+
+
+  public void setImportValidityRegex(String importValidityRegex) {
+    this.importValidityRegex = importValidityRegex;
+  }
+
+
   @Override
   public boolean equals(Object o) {
     if (this == o) {
@@ -234,12 +261,13 @@ public boolean equals(Object o) {
         Objects.equals(this.defaultNamespacePrefix, storageConfig.defaultNamespacePrefix) &&
         Objects.equals(this.preSignSupport, storageConfig.preSignSupport) &&
         Objects.equals(this.preSignSupportUi, storageConfig.preSignSupportUi) &&
-        Objects.equals(this.importSupport, storageConfig.importSupport);
+        Objects.equals(this.importSupport, storageConfig.importSupport) &&
+        Objects.equals(this.importValidityRegex, storageConfig.importValidityRegex);
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(blockstoreType, blockstoreNamespaceExample, blockstoreNamespaceValidityRegex, defaultNamespacePrefix, preSignSupport, preSignSupportUi, importSupport);
+    return Objects.hash(blockstoreType, blockstoreNamespaceExample, blockstoreNamespaceValidityRegex, defaultNamespacePrefix, preSignSupport, preSignSupportUi, importSupport, importValidityRegex);
   }
 
   @Override
@@ -253,6 +281,7 @@ public String toString() {
     sb.append("    preSignSupport: ").append(toIndentedString(preSignSupport)).append("\n");
     sb.append("    preSignSupportUi: ").append(toIndentedString(preSignSupportUi)).append("\n");
     sb.append("    importSupport: ").append(toIndentedString(importSupport)).append("\n");
+    sb.append("    importValidityRegex: ").append(toIndentedString(importValidityRegex)).append("\n");
     sb.append("}");
     return sb.toString();
   }
diff --git a/clients/java/src/test/java/io/lakefs/clients/api/model/StorageConfigTest.java b/clients/java/src/test/java/io/lakefs/clients/api/model/StorageConfigTest.java
index b0e969c1774..0a46368e0c9 100644
--- a/clients/java/src/test/java/io/lakefs/clients/api/model/StorageConfigTest.java
+++ b/clients/java/src/test/java/io/lakefs/clients/api/model/StorageConfigTest.java
@@ -96,4 +96,12 @@ public void importSupportTest() {
         // TODO: test importSupport
     }
 
+    /**
+     * Test the property 'importValidityRegex'
+     */
+    @Test
+    public void importValidityRegexTest() {
+        // TODO: test importValidityRegex
+    }
+
 }
diff --git a/clients/python/docs/StorageConfig.md b/clients/python/docs/StorageConfig.md
index 85f44afccdf..c9f469c1ddb 100644
--- a/clients/python/docs/StorageConfig.md
+++ b/clients/python/docs/StorageConfig.md
@@ -10,6 +10,7 @@ Name | Type | Description | Notes
 **pre_sign_support** | **bool** |  | 
 **pre_sign_support_ui** | **bool** |  | 
 **import_support** | **bool** |  | 
+**import_validity_regex** | **str** |  | 
 **default_namespace_prefix** | **str** |  | [optional] 
 **any string name** | **bool, date, datetime, dict, float, int, list, str, none_type** | any string name can be used but the value must be the correct type | [optional]
 
diff --git a/clients/python/lakefs_client/model/storage_config.py b/clients/python/lakefs_client/model/storage_config.py
index 4bdd63d1121..d8c452d7a1a 100644
--- a/clients/python/lakefs_client/model/storage_config.py
+++ b/clients/python/lakefs_client/model/storage_config.py
@@ -88,6 +88,7 @@ def openapi_types():
             'pre_sign_support': (bool,),  # noqa: E501
             'pre_sign_support_ui': (bool,),  # noqa: E501
             'import_support': (bool,),  # noqa: E501
+            'import_validity_regex': (str,),  # noqa: E501
             'default_namespace_prefix': (str,),  # noqa: E501
         }
 
@@ -103,6 +104,7 @@ def discriminator():
         'pre_sign_support': 'pre_sign_support',  # noqa: E501
         'pre_sign_support_ui': 'pre_sign_support_ui',  # noqa: E501
         'import_support': 'import_support',  # noqa: E501
+        'import_validity_regex': 'import_validity_regex',  # noqa: E501
         'default_namespace_prefix': 'default_namespace_prefix',  # noqa: E501
     }
 
@@ -113,7 +115,7 @@ def discriminator():
 
     @classmethod
     @convert_js_args_to_python_args
-    def _from_openapi_data(cls, blockstore_type, blockstore_namespace_example, blockstore_namespace_validity_regex, pre_sign_support, pre_sign_support_ui, import_support, *args, **kwargs):  # noqa: E501
+    def _from_openapi_data(cls, blockstore_type, blockstore_namespace_example, blockstore_namespace_validity_regex, pre_sign_support, pre_sign_support_ui, import_support, import_validity_regex, *args, **kwargs):  # noqa: E501
         """StorageConfig - a model defined in OpenAPI
 
         Args:
@@ -123,6 +125,7 @@ def _from_openapi_data(cls, blockstore_type, blockstore_namespace_example, block
             pre_sign_support (bool):
             pre_sign_support_ui (bool):
             import_support (bool):
+            import_validity_regex (str):
 
         Keyword Args:
             _check_type (bool): if True, values for parameters in openapi_types
@@ -189,6 +192,7 @@ def _from_openapi_data(cls, blockstore_type, blockstore_namespace_example, block
         self.pre_sign_support = pre_sign_support
         self.pre_sign_support_ui = pre_sign_support_ui
         self.import_support = import_support
+        self.import_validity_regex = import_validity_regex
         for var_name, var_value in kwargs.items():
             if var_name not in self.attribute_map and \
                         self._configuration is not None and \
@@ -209,7 +213,7 @@ def _from_openapi_data(cls, blockstore_type, blockstore_namespace_example, block
     ])
 
     @convert_js_args_to_python_args
-    def __init__(self, blockstore_type, blockstore_namespace_example, blockstore_namespace_validity_regex, pre_sign_support, pre_sign_support_ui, import_support, *args, **kwargs):  # noqa: E501
+    def __init__(self, blockstore_type, blockstore_namespace_example, blockstore_namespace_validity_regex, pre_sign_support, pre_sign_support_ui, import_support, import_validity_regex, *args, **kwargs):  # noqa: E501
         """StorageConfig - a model defined in OpenAPI
 
         Args:
@@ -219,6 +223,7 @@ def __init__(self, blockstore_type, blockstore_namespace_example, blockstore_nam
             pre_sign_support (bool):
             pre_sign_support_ui (bool):
             import_support (bool):
+            import_validity_regex (str):
 
         Keyword Args:
             _check_type (bool): if True, values for parameters in openapi_types
@@ -283,6 +288,7 @@ def __init__(self, blockstore_type, blockstore_namespace_example, blockstore_nam
         self.pre_sign_support = pre_sign_support
         self.pre_sign_support_ui = pre_sign_support_ui
         self.import_support = import_support
+        self.import_validity_regex = import_validity_regex
         for var_name, var_value in kwargs.items():
             if var_name not in self.attribute_map and \
                         self._configuration is not None and \
diff --git a/docs/assets/js/swagger.yml b/docs/assets/js/swagger.yml
index e6f8cd51e07..d7e06729ea3 100644
--- a/docs/assets/js/swagger.yml
+++ b/docs/assets/js/swagger.yml
@@ -1027,6 +1027,7 @@ components:
         - pre_sign_support
         - pre_sign_support_ui
         - import_support
+        - import_validity_regex
       properties:
         blockstore_type:
           type: string
@@ -1042,6 +1043,8 @@ components:
           type: boolean
         import_support:
           type: boolean
+        import_validity_regex:
+          type: string
 
     VersionConfig:
       type: object
diff --git a/pkg/api/controller.go b/pkg/api/controller.go
index 89ea45905ae..492541e81c4 100644
--- a/pkg/api/controller.go
+++ b/pkg/api/controller.go
@@ -1452,6 +1452,7 @@ func (c *Controller) GetStorageConfig(w http.ResponseWriter, r *http.Request) {
 		PreSignSupport:                   info.PreSignSupport,
 		PreSignSupportUi:                 info.PreSignSupportUI,
 		ImportSupport:                    info.ImportSupport,
+		ImportValidityRegex:              info.ImportValidityRegex,
 	}
 	writeResponse(w, r, http.StatusOK, response)
 }
diff --git a/pkg/block/azure/adapter.go b/pkg/block/azure/adapter.go
index cecc9398fab..eb5cdd041cf 100644
--- a/pkg/block/azure/adapter.go
+++ b/pkg/block/azure/adapter.go
@@ -570,7 +570,8 @@ func (a *Adapter) CompleteMultiPartUpload(ctx context.Context, obj block.ObjectP
 
 func (a *Adapter) GetStorageNamespaceInfo() block.StorageNamespaceInfo {
 	info := block.DefaultStorageNamespaceInfo(block.BlockstoreTypeAzure)
-	info.ValidityRegex = `^https?://[a-z,0-9]+\.blob\.core\.windows\.net`
+	info.ImportValidityRegex = `^https?://[a-z0-9_-]+\.(blob|adls)\.core\.windows\.net` // added adls for import hint validation in UI
+	info.ValidityRegex = `^https?://[a-z0-9_-]+\.blob\.core\.windows\.net`
 	info.Example = "https://mystorageaccount.blob.core.windows.net/mycontainer/"
 	if a.disablePreSigned {
 		info.PreSignSupport = false
diff --git a/pkg/block/namespace.go b/pkg/block/namespace.go
index ddcd571d55a..65f01ba546b 100644
--- a/pkg/block/namespace.go
+++ b/pkg/block/namespace.go
@@ -51,6 +51,7 @@ type StorageNamespaceInfo struct {
 	PreSignSupport         bool
 	PreSignSupportUI       bool
 	ImportSupport          bool
+	ImportValidityRegex    string
 }
 
 type QualifiedKey interface {
@@ -189,9 +190,10 @@ func DefaultValidationRegex(scheme string) string {
 
 func DefaultStorageNamespaceInfo(scheme string) StorageNamespaceInfo {
 	return StorageNamespaceInfo{
-		ValidityRegex:  DefaultValidationRegex(scheme),
-		Example:        DefaultExample(scheme),
-		PreSignSupport: true,
-		ImportSupport:  true,
+		ValidityRegex:       DefaultValidationRegex(scheme),
+		Example:             DefaultExample(scheme),
+		PreSignSupport:      true,
+		ImportSupport:       true,
+		ImportValidityRegex: DefaultValidationRegex(scheme),
 	}
 }
diff --git a/webui/src/lib/hooks/storageConfig.tsx b/webui/src/lib/hooks/storageConfig.tsx
index 429eb4ba80a..dfc1cd8af53 100644
--- a/webui/src/lib/hooks/storageConfig.tsx
+++ b/webui/src/lib/hooks/storageConfig.tsx
@@ -16,6 +16,7 @@ type StorageConfigContextType = {
   blockstore_type: string | null;
   default_namespace_prefix: string | null;
   import_support: boolean;
+  import_validity_regex: string | null;
   pre_sign_support: boolean;
   pre_sign_support_ui: boolean;
 };
@@ -28,6 +29,7 @@ const storageConfigInitialState: StorageConfigContextType = {
   blockstore_type: null,
   default_namespace_prefix: null,
   import_support: false,
+  import_validity_regex: null,
   pre_sign_support: false,
   pre_sign_support_ui: false,
 };
diff --git a/webui/src/pages/repositories/services/import_data.jsx b/webui/src/pages/repositories/services/import_data.jsx
index fc978e0e90c..4cf6075e89d 100644
--- a/webui/src/pages/repositories/services/import_data.jsx
+++ b/webui/src/pages/repositories/services/import_data.jsx
@@ -97,8 +97,8 @@ const ImportForm = ({
 
                     }) => {
     const [isSourceValid, setIsSourceValid] = useState(true);
-    const storageNamespaceValidityRegexStr = config.blockstore_namespace_ValidityRegex;
-    const storageNamespaceValidityRegex = RegExp(storageNamespaceValidityRegexStr);
+    const importValidityRegexStr = config.import_validity_regex;
+    const storageNamespaceValidityRegex = RegExp(importValidityRegexStr);
     const updateSourceURLValidity = () => {
         if (!sourceRef.current.value) {
             updateSrcValidity(true);
@@ -124,7 +124,7 @@ const ImportForm = ({
                               onChange={updateSourceURLValidity}/>
                 {isSourceValid === false &&
                     <Form.Text className="text-danger">
-                        {`Import source should match the following pattern: "${storageNamespaceValidityRegexStr}"`}
+                        {`Import source should match the following pattern: "${importValidityRegexStr}"`}
                     </Form.Text>
                 }
                 {isSourceValid &&