diff --git a/app/services/crm/leadsquared/lead_finder_service.rb b/app/services/crm/leadsquared/lead_finder_service.rb
index cf3014099..59318b818 100644
--- a/app/services/crm/leadsquared/lead_finder_service.rb
+++ b/app/services/crm/leadsquared/lead_finder_service.rb
@@ -31,7 +31,11 @@ class Crm::Leadsquared::LeadFinderService
   def find_by_phone_number(contact)
     return if contact.phone_number.blank?
 
-    search_by_field(contact.phone_number)
+    lead_data = Crm::Leadsquared::Mappers::ContactMapper.map(contact)
+
+    return if lead_data.blank? || lead_data['Mobile'].nil?
+
+    search_by_field(lead_data['Mobile'])
   end
 
   def search_by_field(value)
diff --git a/app/services/crm/leadsquared/mappers/contact_mapper.rb b/app/services/crm/leadsquared/mappers/contact_mapper.rb
index 0196116bb..dc51a1498 100644
--- a/app/services/crm/leadsquared/mappers/contact_mapper.rb
+++ b/app/services/crm/leadsquared/mappers/contact_mapper.rb
@@ -20,11 +20,29 @@ class Crm::Leadsquared::Mappers::ContactMapper
       'FirstName' => contact.name.presence,
       'LastName' => contact.last_name.presence,
       'EmailAddress' => contact.email.presence,
-      'Mobile' => contact.phone_number.presence,
+      'Mobile' => formatted_phone_number,
       'Source' => brand_name
     }.compact
   end
 
+  def formatted_phone_number
+    # it seems like leadsquared needs a different phone number format
+    # it's not documented anywhere, so don't bother trying to look up online
+    # After some trial and error, I figured out the format, its +<country_code>-<national_number>
+    return nil if contact.phone_number.blank?
+
+    parsed = TelephoneNumber.parse(contact.phone_number)
+    return contact.phone_number unless parsed.valid?
+
+    country_code = parsed.country.country_code
+    e164 = parsed.e164_number
+    e164 = e164.sub(/^\+/, '')
+
+    national_number = e164.sub(/^#{Regexp.escape(country_code)}/, '')
+
+    "+#{country_code}-#{national_number}"
+  end
+
   def brand_name
     ::GlobalConfig.get('BRAND_NAME')['BRAND_NAME'] || 'Chatwoot'
   end
diff --git a/spec/services/crm/leadsquared/mappers/contact_mapper_spec.rb b/spec/services/crm/leadsquared/mappers/contact_mapper_spec.rb
index 4e7c06fdb..b6bf51f93 100644
--- a/spec/services/crm/leadsquared/mappers/contact_mapper_spec.rb
+++ b/spec/services/crm/leadsquared/mappers/contact_mapper_spec.rb
@@ -16,6 +16,7 @@ RSpec.describe Crm::Leadsquared::Mappers::ContactMapper do
           name: 'John',
           last_name: 'Doe',
           email: 'john@example.com',
+          # the phone number is intentionally wrong
           phone_number: '+1234567890'
         )
 
@@ -29,6 +30,19 @@ RSpec.describe Crm::Leadsquared::Mappers::ContactMapper do
           'Source' => 'Test Brand'
         )
       end
+
+      it 'represents the phone number correctly' do
+        contact.update!(
+          name: 'John',
+          last_name: 'Doe',
+          email: 'john@example.com',
+          phone_number: '+917507684392'
+        )
+
+        mapped_data = described_class.map(contact)
+
+        expect(mapped_data).to include('Mobile' => '+91-7507684392')
+      end
     end
   end
 end