diff --git a/classes/helpers/FrmFieldsHelper.php b/classes/helpers/FrmFieldsHelper.php
index 9acd4a3995..8855a070c5 100644
--- a/classes/helpers/FrmFieldsHelper.php
+++ b/classes/helpers/FrmFieldsHelper.php
@@ -293,7 +293,7 @@ private static function fill_cleared_strings( $field, array &$field_array ) {
 				$frm_settings           = FrmAppHelper::get_settings();
 				$field_array['invalid'] = $frm_settings->re_msg;
 			} else {
-				$field_array['invalid'] = self::default_invalid_msg();
+				$field_array['invalid'] = self::default_invalid_msg( $field );
 			}
 		}
 
@@ -304,11 +304,36 @@ private static function fill_cleared_strings( $field, array &$field_array ) {
 	}
 
 	/**
+	 * Default "invalid" validation message. Gives field-type-specific correction guidance
+	 * for field types where the format requirement isn't obvious from the label alone
+	 * (WCAG 3.3.1/3.3.3), and falls back to a generic message for every other type.
+	 *
 	 * @since 6.8.3
+	 * @since 6.35 Added the $field param for a type-specific message.
+	 *
+	 * @param array|object|null $field Optional. Field to check the type of.
 	 *
 	 * @return string
 	 */
-	public static function default_invalid_msg() {
+	public static function default_invalid_msg( $field = null ) {
+		$type     = $field ? FrmField::get_field_type( $field ) : '';
+		$messages = array(
+			/* translators: %s: [field_name] shortcode (Which gets replaced by a Field Name) */
+			'email'  => sprintf( __( '%s is invalid. Enter a valid email address, like name@example.com', 'formidable' ), '[field_name]' ),
+			/* translators: %s: [field_name] shortcode (Which gets replaced by a Field Name) */
+			'url'    => sprintf( __( '%s is invalid. Enter a valid web address, like https://example.com', 'formidable' ), '[field_name]' ),
+			/* translators: %s: [field_name] shortcode (Which gets replaced by a Field Name) */
+			'phone'  => sprintf( __( '%s is invalid. Enter a valid phone number', 'formidable' ), '[field_name]' ),
+			/* translators: %s: [field_name] shortcode (Which gets replaced by a Field Name) */
+			'number' => sprintf( __( '%s is invalid. Enter a number', 'formidable' ), '[field_name]' ),
+		);
+		// Quantity validates identically to number (FrmFieldQuantity extends FrmFieldNumber) but is a distinct stored type.
+		$messages['quantity'] = $messages['number'];
+
+		if ( isset( $messages[ $type ] ) ) {
+			return $messages[ $type ];
+		}
+
 		/* translators: %s: [field_name] shortcode (Which gets replaced by a Field Name) */
 		return sprintf( __( '%s is invalid', 'formidable' ), '[field_name]' );
 	}
@@ -465,8 +490,7 @@ public static function get_error_msg( $field, $error ) {
 			),
 			'invalid'    => array(
 				'full' => __( 'This field is invalid', 'formidable' ),
-				/* translators: %s: Field name */
-				'part' => sprintf( __( '%s is invalid', 'formidable' ), '[field_name]' ),
+				'part' => self::default_invalid_msg( $field ),
 			),
 			'blank'      => array(
 				'full' => $frm_settings->blank_msg,
diff --git a/tests/phpunit/fields/test_FrmFieldsHelper.php b/tests/phpunit/fields/test_FrmFieldsHelper.php
index 741d3dbf14..cba4b79801 100644
--- a/tests/phpunit/fields/test_FrmFieldsHelper.php
+++ b/tests/phpunit/fields/test_FrmFieldsHelper.php
@@ -310,4 +310,67 @@ public function test_get_error_msg() {
 		$error_message = FrmFieldsHelper::get_error_msg( $field, 'unique_msg' );
 		$this->assertSame( 'My example field must be unique', $error_message );
 	}
+
+	/**
+	 * @covers FrmFieldsHelper::get_error_msg
+	 * @covers FrmFieldsHelper::default_invalid_msg
+	 */
+	public function test_get_error_msg_invalid_is_field_type_specific() {
+		$form_id = $this->factory->form->create();
+
+		// Email, url, phone, number, and quantity fields get their own corrective message
+		// when no custom one is set; a type with no specific copy (text) keeps the
+		// original generic message.
+		$tests = array(
+			array(
+				'type'     => 'email',
+				'name'     => 'Email',
+				'expected' => 'Email is invalid. Enter a valid email address, like name@example.com',
+			),
+			array(
+				'type'     => 'url',
+				'name'     => 'Website',
+				'expected' => 'Website is invalid. Enter a valid web address, like https://example.com',
+			),
+			array(
+				'type'     => 'phone',
+				'name'     => 'Cell',
+				'expected' => 'Cell is invalid. Enter a valid phone number',
+			),
+			array(
+				'type'     => 'number',
+				'name'     => 'Age',
+				'expected' => 'Age is invalid. Enter a number',
+			),
+			array(
+				'type'     => 'quantity',
+				'name'     => 'Amount',
+				'expected' => 'Amount is invalid. Enter a number',
+			),
+			array(
+				'type'     => 'text',
+				'name'     => 'Comment',
+				'expected' => 'Comment is invalid',
+			),
+		);
+
+		foreach ( $tests as $test ) {
+			$field = $this->factory->field->create_and_get(
+				array(
+					'name'    => $test['name'],
+					'form_id' => $form_id,
+					'type'    => $test['type'],
+				)
+			);
+
+			$error_message = FrmFieldsHelper::get_error_msg( $field, 'invalid' );
+			$this->assertSame( $test['expected'], $error_message );
+		}
+
+		// A custom message saved on the field is never overridden by the type-specific default.
+		$field->field_options['invalid'] = 'Please fix [field_name]';
+
+		$error_message = FrmFieldsHelper::get_error_msg( $field, 'invalid' );
+		$this->assertSame( 'Please fix Comment', $error_message );
+	}
 }