diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08af486..91e967b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to `shergela/validation-rule` will be documented in this file.
 
+## 1.0.7 | 12 September - 2024
+- Refactoring code.
+- Added support for substitutions in messages, This is needed to be able to write good messages.
+  Placeholder will allow you to write messages using positioning.
+- New syntax for messages "The :name field is required.", or "The :email field is required."
+
+
 ## 1.0.6 | 06 September - 2024
 
 - add new `uppercaseWord()` method.
diff --git a/README.md b/README.md
index a6ca60f..947bfc9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # Build custom laravel validation rules easily
 
+> This package is under development, please do not use in production.
+> You can download and test it.
+
 ## Installation
 Require the package with composer using the following command:
 
diff --git a/src/Constants/ValidationRule.php b/src/Constants/ValidationRule.php
index 536dff2..a18188d 100644
--- a/src/Constants/ValidationRule.php
+++ b/src/Constants/ValidationRule.php
@@ -44,10 +44,10 @@ class ValidationRule
     /**
      * The field under validation must be included in the given list of values in:foo,bar...
      */
-    public const IN = 'in:';
+    public const IN = 'in';
 
     /**
      * The field under validation must not be included in the given list of values not_in:foo,bar,bar...
      */
-    public const NOT_IN = 'not_in:';
+    public const NOT_IN = 'not_in';
 }
diff --git a/src/Rules/SeparateIntegersByComma.php b/src/Rules/SeparateIntegersByComma.php
index 1bed8cc..a955f18 100644
--- a/src/Rules/SeparateIntegersByComma.php
+++ b/src/Rules/SeparateIntegersByComma.php
@@ -4,7 +4,6 @@
 
 use Closure;
 use Illuminate\Contracts\Validation\ValidationRule;
-use Illuminate\Support\Str;
 use Shergela\Validations\Constants\ValidationRegex as Regex;
 
 class SeparateIntegersByComma implements ValidationRule
diff --git a/src/Rules/SeparateStringsByComma.php b/src/Rules/SeparateStringsByComma.php
index bbfde9f..c5224f2 100644
--- a/src/Rules/SeparateStringsByComma.php
+++ b/src/Rules/SeparateStringsByComma.php
@@ -4,7 +4,6 @@
 
 use Closure;
 use Illuminate\Contracts\Validation\ValidationRule;
-use Illuminate\Support\Str;
 use Shergela\Validations\Constants\ValidationRegex as Regex;
 
 class SeparateStringsByComma implements ValidationRule
diff --git a/src/Rules/SeparateStringsByUnderscore.php b/src/Rules/SeparateStringsByUnderscore.php
index 01dfc8e..698b1b3 100644
--- a/src/Rules/SeparateStringsByUnderscore.php
+++ b/src/Rules/SeparateStringsByUnderscore.php
@@ -4,7 +4,6 @@
 
 use Closure;
 use Illuminate\Contracts\Validation\ValidationRule;
-use Illuminate\Support\Str;
 use Shergela\Validations\Constants\ValidationRegex as Regex;
 
 class SeparateStringsByUnderscore implements ValidationRule
diff --git a/src/Validation/BuildValidationRule.php b/src/Validation/BuildValidationRule.php
index 1b869e9..0751c79 100644
--- a/src/Validation/BuildValidationRule.php
+++ b/src/Validation/BuildValidationRule.php
@@ -339,7 +339,7 @@ class BuildValidationRule
     /**
      * @var bool
      */
-    protected ?bool $distinctStinct = false;
+    protected ?bool $distinctStrict = false;
 
     /**
      * @var bool
@@ -468,8 +468,10 @@ protected function buildValidationRules(): array
                 ? [DateRule::DATE_BEFORE_OR_EQUAL . $this->dateBeforeOrEqual]
                 : []
             ),
+
             ...($this->dateAfterOrEqualToday === true ? [DateRule::DATE_AFTER_OR_EQUAL_TODAY] : []),
             ...($this->dateAfter !== null ? [DateRule::DATE_AFTER . $this->dateAfter] : []),
+
             ...($this->dateAfterOrEqual !== null
                 ? [DateRule::DATE_AFTER_OR_EQUAL . $this->dateAfterOrEqual]
                 : []
@@ -507,7 +509,7 @@ protected function buildValidationRules(): array
              */
             ...($this->array === true ? [ArrayRule::ARRAY] : []),
             ...($this->arrayDistinct === true ? [ArrayRule::DISTINCT] : []),
-            ...($this->distinctStinct === true ? [ArrayRule::DISTINCT_STRICT] : []),
+            ...($this->distinctStrict === true ? [ArrayRule::DISTINCT_STRICT] : []),
             ...($this->distinctIgnoreCase === true ? [ArrayRule::DISTINCT_IGNORE_CASE] : []),
         ];
 
diff --git a/src/Validation/Rule.php b/src/Validation/Rule.php
index a31e19a..7f17630 100644
--- a/src/Validation/Rule.php
+++ b/src/Validation/Rule.php
@@ -11,13 +11,11 @@
 use Illuminate\Contracts\Validation\ValidatorAwareRule;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Facades\Validator as ValidatorFacade;
-use Illuminate\Support\Sleep;
 use Illuminate\Support\Str;
 use Illuminate\Validation\Validator;
 use Shergela\Validations\DataManipulation\InNotInRuleManipulation;
 use Shergela\Validations\Constants\DatetimeZoneAbbreviation;
 use Shergela\Validations\Constants\IPMacValidation;
-use Shergela\Validations\Constants\ValidationArray as ArrayRule;
 use Shergela\Validations\Constants\ValidationDate;
 use Shergela\Validations\Constants\ValidationDate as DateRule;
 use Shergela\Validations\Constants\ValidationInteger as IntegerRule;
@@ -66,6 +64,8 @@ class Rule extends BuildValidationRule implements ValidationRule, ValidatorAware
      */
     protected array $customRules = [];
 
+    private static string $placeholder = ':';
+
     /**
      * @param Validator $validator
      * @return $this
@@ -124,11 +124,15 @@ protected function getValidationData(): array
      */
     private static function buildCustomMessage(string $message, string $rule): string
     {
-        if (Str::contains($message, ':') === false) {
-            throw new Exception('The placeholder not defined in the message.');
+        if (Str::contains($message, static::$placeholder) === false) {
+            throw new Exception(
+                'The placeholder not defined in the message.'
+                . ' ' . 'Placeholder must be like this [:name] format.'
+                . ' ' . 'For example `The :name field is required.`'
+            );
         }
 
-        $explode = explode(' ', Str::after($message, ':'));
+        $explode = explode(' ', Str::after($message, static::$placeholder));
 
         return $explode[0] . '.' . $rule;
     }
@@ -911,11 +915,12 @@ public function timezonePacific(array|string $cities, string $message = null): s
      * @param int|null $second
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function decimal(int $first, int $second = null, string $message = null): static
     {
         if ($message !== null) {
-            static::$customMessages['decimal'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'decimal')] = $message;
         }
 
         if ($second != null) {
@@ -931,13 +936,16 @@ public function decimal(int $first, int $second = null, string $message = null):
     /**
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function uppercase(string $message = null): static
     {
         $this->uppercase = true;
 
         if ($message !== null) {
-            static::$customMessages[StringRule::UPPERCASE] = $message;
+            static::$customMessages[
+                self::buildCustomMessage(message: $message, rule: StringRule::UPPERCASE)
+            ] = $message;
         }
 
         return $this;
@@ -976,13 +984,14 @@ public function lowercaseFirstLetter(string $message = null): static
     /**
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function lowercase(string $message = null): static
     {
         $this->lowerCase = true;
 
         if ($message !== null) {
-            static::$customMessages[StringRule::LOWERCASE] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'lowercase')] = $message;
         }
 
         return $this;
@@ -1037,6 +1046,7 @@ public function lettersAndSpaces(string $message = null): static
      * @param array<string> $with
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function startsWith(array $with, string $message = null): static
     {
@@ -1045,7 +1055,7 @@ public function startsWith(array $with, string $message = null): static
         $this->startsWith = StringRule::STARTS_WITH . $implode;
 
         if ($message !== null) {
-            static::$customMessages['starts_with'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'starts_with')] = $message;
         }
 
         return $this;
@@ -1055,6 +1065,7 @@ public function startsWith(array $with, string $message = null): static
      * @param array<string> $with
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function endsWith(array $with, string $message = null): static
     {
@@ -1063,7 +1074,7 @@ public function endsWith(array $with, string $message = null): static
         $this->endsWith = StringRule::ENDS_WITH . $implode;
 
         if ($message !== null) {
-            static::$customMessages['ends_with'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'ends_with')] = $message;
         }
 
         return $this;
@@ -1073,6 +1084,7 @@ public function endsWith(array $with, string $message = null): static
      * @param array<string> $with
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function doesntStartWith(array $with, string $message = null): static
     {
@@ -1081,7 +1093,7 @@ public function doesntStartWith(array $with, string $message = null): static
         $this->doesntStartWith = StringRule::DOESNT_START_WITH . $implode;
 
         if ($message !== null) {
-            static::$customMessages['doesnt_start_with'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'doesnt_start_with')] = $message;
         }
 
         return $this;
@@ -1091,6 +1103,7 @@ public function doesntStartWith(array $with, string $message = null): static
      * @param array<string> $with
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function doesntEndWith(array $with, string $message = null): static
     {
@@ -1099,7 +1112,7 @@ public function doesntEndWith(array $with, string $message = null): static
         $this->doesntEndWith = StringRule::DOESNT_END_WITH . $implode;
 
         if ($message !== null) {
-            static::$customMessages['doesnt_end_with'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'doesnt_end_with')] = $message;
         }
 
         return $this;
@@ -1109,13 +1122,14 @@ public function doesntEndWith(array $with, string $message = null): static
      * @param string $pattern
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function regex(string $pattern, string $message = null): static
     {
         $this->regexPattern = $pattern;
 
         if ($message !== null) {
-            static::$customMessages['regex'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'regex')] = $message;
         }
 
         return $this;
@@ -1165,13 +1179,14 @@ public function separateStringsByUnderscore(string $message = null): static
 
     /**
      * @return $this
+     * @throws Exception
      */
     public function hexColor(string $message = null): static
     {
         $this->hexColor = true;
 
         if ($message !== null) {
-            static::$customMessages[RuleConst::HEX_COLOR] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: RuleConst::HEX_COLOR)] = $message;
         }
 
         return $this;
@@ -1180,13 +1195,16 @@ public function hexColor(string $message = null): static
     /**
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function ip(string $message = null): static
     {
         $this->ip = true;
 
         if ($message !== null) {
-            static::$customMessages[IPMacValidation::IP] = $message;
+            static::$customMessages[
+                self::buildCustomMessage(message: $message, rule: IPMacValidation::IP)
+            ] = $message;
         }
 
         return $this;
@@ -1195,13 +1213,16 @@ public function ip(string $message = null): static
     /**
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function ipv4(string $message = null): static
     {
         $this->ipv4 = true;
 
         if ($message !== null) {
-            static::$customMessages[IPMacValidation::IPV4] = $message;
+            static::$customMessages[
+                self::buildCustomMessage(message: $message, rule: IPMacValidation::IPV4)
+            ] = $message;
         }
 
         return $this;
@@ -1210,11 +1231,14 @@ public function ipv4(string $message = null): static
     /**
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function ipv6(string $message = null): static
     {
         if ($message !== null) {
-            static::$customMessages[IPMacValidation::IPV6] = $message;
+            static::$customMessages[
+                self::buildCustomMessage(message: $message, rule: IPMacValidation::IPV6)
+            ] = $message;
         }
 
         return $this;
@@ -1224,27 +1248,34 @@ public function ipv6(string $message = null): static
      * @param string|null $message
      * @return $this
      * The field under validation must be a MAC address.
+     * @throws Exception
      */
     public function macAddress(string $message = null): static
     {
         $this->macAddress = true;
 
         if ($message !== null) {
-            static::$customMessages[IPMacValidation::MAC_ADDRESS] = $message;
+            static::$customMessages[
+                self::buildCustomMessage(message: $message, rule: IPMacValidation::MAC_ADDRESS)
+            ] = $message;
         }
+
         return $this;
     }
 
     /**
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function json(string $message = null): static
     {
         $this->json = true;
 
         if ($message !== null) {
-            static::$customMessages[StringRule::JSON] = $message;
+            static::$customMessages[
+                self::buildCustomMessage(message: $message, rule: StringRule::JSON)
+            ] = $message;
         }
 
         return $this;
@@ -1254,13 +1285,14 @@ public function json(string $message = null): static
      * @param string|null $message
      * @return $this
      * The integer under validation must have a minimum length of value.
+     * @throws Exception
      */
     public function minDigits(int $minDigits, string $message = null): static
     {
         $this->minDigits = IntegerRule::MIN_DIGITS . $minDigits;
 
         if ($message !== null) {
-            static::$customMessages['min_digits'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'min_digits')] = $message;
         }
 
         return $this;
@@ -1270,13 +1302,14 @@ public function minDigits(int $minDigits, string $message = null): static
      * @param string|null $message
      * @return $this
      * The integer under validation must have a maximum length of value.
+     * @throws Exception
      */
     public function maxDigits(int $maxDigits, string $message = null): static
     {
         $this->maxDigits = IntegerRule::MAX_DIGITS . $maxDigits;
 
         if ($message !== null) {
-            static::$customMessages['max_digits'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'max_digits')] = $message;
         }
 
         return $this;
@@ -1287,13 +1320,14 @@ public function maxDigits(int $maxDigits, string $message = null): static
      * @param int $size
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function size(int $size, string $message = null): static
     {
         $this->size = $size;
 
         if ($message !== null) {
-            static::$customMessages['size'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'size')] = $message;
         }
 
         return $this;
@@ -1303,6 +1337,7 @@ public function size(int $size, string $message = null): static
      * @param Arrayable<int, string>|array<string>|string $values
      * @param string|null $message
      * @return Rule
+     * @throws Exception
      */
     public static function in(Arrayable|array|string $values, string $message = null): Rule
     {
@@ -1316,7 +1351,7 @@ public static function in(Arrayable|array|string $values, string $message = null
         static::$in = (new InNotInRuleManipulation(values: $values, in: true))->handle();
 
         if ($message !== null) {
-            static::$customMessages['in'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: RuleConst::IN)] = $message;
         }
 
         return new self();
@@ -1326,6 +1361,7 @@ public static function in(Arrayable|array|string $values, string $message = null
      * @param Arrayable<int, string>|array<string>|string $values
      * @param string|null $message
      * @return Rule
+     * @throws Exception
      */
     public static function notIn(Arrayable|array|string $values, string $message = null): Rule
     {
@@ -1339,7 +1375,7 @@ public static function notIn(Arrayable|array|string $values, string $message = n
         static::$notIn = (new InNotInRuleManipulation(values: $values, notIn: true))->handle();
 
         if ($message !== null) {
-            static::$customMessages['not_in'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: RuleConst::NOT_IN)] = $message;
         }
 
         return new self();
@@ -1349,30 +1385,26 @@ public static function notIn(Arrayable|array|string $values, string $message = n
      * @param int $length
      * @param string|null $message
      * @return $this
+     * @throws Exception
      */
     public function length(int $length, string $message = null): static
     {
         $this->size = $length;
 
         if ($message !== null) {
-            static::$customMessages['size'] = $message;
+            static::$customMessages[self::buildCustomMessage(message: $message, rule: 'size')] = $message;
         }
 
         return $this;
     }
 
     /**
-     * @param string|null $message
      * @return $this
      */
-    public function array(string $message = null): static
+    public function array(): static
     {
         $this->array = true;
 
-        if ($message !== null) {
-            static::$customMessages[ArrayRule::ARRAY] = $message;
-        }
-
         return $this;
     }
 
@@ -1391,7 +1423,7 @@ public function arrayDistinct(): static
      */
     public function arrayDistinctStrict(): static
     {
-        $this->distinctStinct = true;
+        $this->distinctStrict = true;
 
         return $this;
     }
@@ -1442,7 +1474,7 @@ private function getValidationMessages(): array
 
         if (! empty(static::$customMessages)) {
             foreach (static::$customMessages as $index => $msg) {
-                $placeholder = Str::replace(':', '', $msg);
+                $placeholder = Str::replace(static::$placeholder, '', $msg);
                 $replace = Str::replace('_', ' ', $placeholder);
 
                 $result[$index] = $replace;