diff --git a/models/concerns/periodic_service.rb b/models/concerns/periodic_service.rb
index 6c0608cae..c5672dcf5 100644
--- a/models/concerns/periodic_service.rb
+++ b/models/concerns/periodic_service.rb
@@ -21,6 +21,8 @@ module PeriodicService
   extend ActiveSupport::Concern
 
   def can_affect_all_visits?(service)
+    return true unless self.schedule?
+
     return true if service.visits_number == 1
 
     self.vehicles.any?{ |vehicle|
diff --git a/wrappers/wrapper.rb b/wrappers/wrapper.rb
index 2df158191..af708f8f2 100644
--- a/wrappers/wrapper.rb
+++ b/wrappers/wrapper.rb
@@ -686,6 +686,8 @@ def compute_vehicles_capacity(vrp)
     end
 
     def possible_days_are_consistent(vrp, service)
+      return true unless vrp.schedule?
+
       return false if service.first_possible_days.any?{ |d| d > vrp.schedule_range_indices[:end] }
 
       return false if service.last_possible_days.any?{ |d| d < vrp.schedule_range_indices[:start] }
@@ -747,8 +749,6 @@ def detect_unfeasible_services(vrp)
         detect_inconsistent_relation_timewindows_od_service(vrp, unfeasible, service)
 
         # Planning inconsistency
-        next if !vrp.schedule?
-
         unless possible_days_are_consistent(vrp, service)
           add_unassigned(unfeasible, vrp, service, 'Provided possible days do not allow service to be assigned')
         end