diff --git a/Gemfile.lock b/Gemfile.lock
index 85b34a3..583aac9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,6 +68,7 @@ GEM
     simplecov_json_formatter (0.1.4)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    uri (1.1.1)
     webmock (3.11.3)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
@@ -76,6 +77,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-22
+  arm64-darwin-24
 
 DEPENDENCIES
   contentstack!
diff --git a/lib/contentstack/api.rb b/lib/contentstack/api.rb
index f68fa5e..88f48b3 100644
--- a/lib/contentstack/api.rb
+++ b/lib/contentstack/api.rb
@@ -82,7 +82,7 @@ def self.fetch_retry(path, query=nil, count=0)
           sleep(retryDelay_in_seconds.to_i) #sleep method requires time in seconds as parameter
           response = fetch_retry(path, query, (count + 1))
         else
-         raise Contentstack::Error.new(response) #Retry Limit exceeded
+         raise Contentstack::Error.new(Contentstack::ErrorMessages.request_failed(response)) #Retry Limit exceeded
         end  
       else
         to_render_content(response)
@@ -125,7 +125,7 @@ def self.send_request(path, q=nil)
         error_response = JSON.parse(response.string)
         error_status = {"status_code" => response.status[0], "status_message" => response.status[1]}
         error = error_response.merge(error_status)
-        raise Contentstack::Error.new(error.to_s)
+        raise Contentstack::Error.new(Contentstack::ErrorMessages.request_error(error))
       end
     end
 
@@ -165,7 +165,7 @@ def self.send_preview_request(path, q=nil)
         error_response = JSON.parse(response.string)
         error_status = {"status_code" => response.status[0], "status_message" => response.status[1]}
         error = error_response.merge(error_status)
-        raise Contentstack::Error.new(error.to_s)
+        raise Contentstack::Error.new(Contentstack::ErrorMessages.request_error(error))
       end
     end
 
diff --git a/lib/contentstack/client.rb b/lib/contentstack/client.rb
index e66d5de..7d9a0cd 100644
--- a/lib/contentstack/client.rb
+++ b/lib/contentstack/client.rb
@@ -10,12 +10,12 @@ class Client
     attr_reader :region, :host
     # Initialize "Contentstack" Client instance
     def initialize(api_key, delivery_token, environment, options={})
-      raise Contentstack::Error.new("Api Key is not valid") if api_key.class != String
-      raise Contentstack::Error.new("Api Key Field Should not be Empty") if api_key.empty?
-      raise Contentstack::Error.new("Delivery Token is not valid") if delivery_token.class != String
-      raise Contentstack::Error.new("Delivery Token Field Should not be Empty") if delivery_token.empty?
-      raise Contentstack::Error.new("Envirnoment Field is not valid") if environment.class != String
-      raise Contentstack::Error.new("Envirnoment Field Should not be Empty") if environment.empty?
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::API_KEY_INVALID) if api_key.class != String
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::API_KEY_REQUIRED) if api_key.empty?
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::DELIVERY_TOKEN_INVALID) if delivery_token.class != String
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::DELIVERY_TOKEN_REQUIRED) if delivery_token.empty?
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::ENVIRONMENT_INVALID) if environment.class != String
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::ENVIRONMENT_REQUIRED) if environment.empty?
       @region = options[:region].nil? ? Contentstack::Region::US : options[:region]
       # @host = options[:host].nil? ? get_default_region_hosts(@region) : options[:host] #removed for not supporting custom host with regions
       @host = get_host_by_region(@region, options) # Added new method for custom host support with different regions
@@ -32,8 +32,8 @@ def initialize(api_key, delivery_token, environment, options={})
         "retryLimit"=> @retryLimit,
         "errorRetry" => @errorRetry
       }
-      raise Contentstack::Error.new("Proxy URL Should not be Empty") if @proxy_details.present? && @proxy_details[:url].empty?
-      raise Contentstack::Error.new("Proxy Port Should not be Empty") if @proxy_details.present? && @proxy_details[:port].empty?
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::PROXY_URL_REQUIRED) if @proxy_details.present? && @proxy_details[:url].empty?
+      raise Contentstack::Error.new(Contentstack::ErrorMessages::PROXY_PORT_REQUIRED) if @proxy_details.present? && @proxy_details[:port].empty?
       API.init_api(api_key, delivery_token, environment,  @host, @branch, @live_preview, @proxy_details, retry_options)
     end
 
diff --git a/lib/contentstack/error.rb b/lib/contentstack/error.rb
index 8a68926..288542a 100644
--- a/lib/contentstack/error.rb
+++ b/lib/contentstack/error.rb
@@ -1,4 +1,24 @@
 module Contentstack
+  # Centralized error messages for the SDK
+  module ErrorMessages
+    API_KEY_INVALID = "API Key is invalid. Provide a valid API Key and try again."
+    API_KEY_REQUIRED = "API Key is required. Provide a valid API Key and try again."
+    DELIVERY_TOKEN_INVALID = "Delivery Token is invalid. Provide a valid Delivery Token and try again."
+    DELIVERY_TOKEN_REQUIRED = "Delivery Token is required. Provide a valid Delivery Token and try again."
+    ENVIRONMENT_INVALID = "Environment is invalid. Provide a valid Environment and try again."
+    ENVIRONMENT_REQUIRED = "Environment is required. Provide a valid Environment and try again."
+    PROXY_URL_REQUIRED = "Proxy URL is required. Provide a valid Proxy URL and try again."
+    PROXY_PORT_REQUIRED = "Proxy Port is required. Provide a valid Proxy Port and try again."
+
+    def self.request_failed(response)
+      "The request could not be completed due to #{response}. Review the details and try again."
+    end
+
+    def self.request_error(error)
+      "The request encountered an issue due to #{error}. Review the details and try again."
+    end
+  end
+
   class Error < StandardError
     def initialize(msg="Something Went Wrong.")
       super