diff --git a/flyteadmin/pkg/manager/impl/executions/quality_of_service.go b/flyteadmin/pkg/manager/impl/executions/quality_of_service.go
index a96d99d3d6..e2a32debdd 100644
--- a/flyteadmin/pkg/manager/impl/executions/quality_of_service.go
+++ b/flyteadmin/pkg/manager/impl/executions/quality_of_service.go
@@ -110,7 +110,7 @@ func (q qualityOfServiceAllocator) GetQualityOfService(ctx context.Context, inpu
 				return QualityOfServiceSpec{}, errors.NewFlyteAdminErrorf(codes.InvalidArgument,
 					"Invalid custom quality of service set in launch plan [%v], failed to parse duration [%v] with: %v",
 					input.LaunchPlan.Id,
-					input.ExecutionCreateRequest.Spec.QualityOfService.GetSpec().QueueingBudget, err)
+					input.LaunchPlan.Spec.QualityOfService.GetSpec().QueueingBudget, err)
 			}
 			return QualityOfServiceSpec{
 				QueuingBudget: duration,
@@ -129,7 +129,7 @@ func (q qualityOfServiceAllocator) GetQualityOfService(ctx context.Context, inpu
 				return QualityOfServiceSpec{}, errors.NewFlyteAdminErrorf(codes.InvalidArgument,
 					"Invalid custom quality of service set in workflow [%v], failed to parse duration [%v] with: %v",
 					workflowIdentifier,
-					input.ExecutionCreateRequest.Spec.QualityOfService.GetSpec().QueueingBudget, err)
+					input.Workflow.Closure.CompiledWorkflow.Primary.Template.Metadata.QualityOfService.GetSpec().QueueingBudget, err)
 			}
 			return QualityOfServiceSpec{
 				QueuingBudget: duration,
@@ -154,7 +154,7 @@ func (q qualityOfServiceAllocator) GetQualityOfService(ctx context.Context, inpu
 				return QualityOfServiceSpec{}, errors.NewFlyteAdminErrorf(codes.InvalidArgument,
 					"Invalid custom quality of service set in overridable matching attributes for [%v],"+
 						"failed to parse duration [%v] with: %v", workflowIdentifier,
-					input.ExecutionCreateRequest.Spec.QualityOfService.GetSpec().QueueingBudget, err)
+					qualityOfService.GetSpec().QueueingBudget, err)
 			}
 			return QualityOfServiceSpec{
 				QueuingBudget: duration,
@@ -163,7 +163,7 @@ func (q qualityOfServiceAllocator) GetQualityOfService(ctx context.Context, inpu
 			logger.Debugf(ctx, "Determining quality of service tier from database override for [%s/%s/%s]",
 				input.ExecutionCreateRequest.Project, input.ExecutionCreateRequest.Domain,
 				input.ExecutionCreateRequest.Name)
-			qualityOfServiceTier = input.Workflow.Closure.CompiledWorkflow.Primary.Template.Metadata.QualityOfService.GetTier()
+			qualityOfServiceTier = qualityOfService.GetTier()
 		}
 	}
 
diff --git a/flyteadmin/pkg/manager/impl/executions/quality_of_service_test.go b/flyteadmin/pkg/manager/impl/executions/quality_of_service_test.go
index 41a04ec2bc..335b5d390c 100644
--- a/flyteadmin/pkg/manager/impl/executions/quality_of_service_test.go
+++ b/flyteadmin/pkg/manager/impl/executions/quality_of_service_test.go
@@ -2,6 +2,7 @@ package executions
 
 import (
 	"context"
+	"errors"
 	"testing"
 	"time"
 
@@ -35,6 +36,16 @@ func getQualityOfServiceWithDuration(duration time.Duration) *core.QualityOfServ
 	}
 }
 
+func getQualityOfServiceWithNilDuration() *core.QualityOfService {
+	return &core.QualityOfService{
+		Designation: &core.QualityOfService_Spec{
+			Spec: &core.QualityOfServiceSpec{
+				QueueingBudget: nil,
+			},
+		},
+	}
+}
+
 func getMockConfig() runtimeInterfaces.Configuration {
 	mockConfig := mocks.NewMockConfigurationProvider(nil, nil, nil, nil, nil, nil)
 	provider := &runtimeIFaceMocks.QualityOfServiceConfiguration{}
@@ -78,6 +89,35 @@ func addGetResourceFunc(t *testing.T, resourceManager interfaces.ResourceInterfa
 	}
 }
 
+func addGetErrorResourceFunc(t *testing.T, resourceManager interfaces.ResourceInterface, containSpec bool) {
+	resourceManager.(*managerMocks.MockResourceManager).GetResourceFunc = func(ctx context.Context,
+		request interfaces.ResourceRequest) (*interfaces.ResourceResponse, error) {
+		assert.EqualValues(t, request, interfaces.ResourceRequest{
+			Project:      workflowIdentifier.Project,
+			Domain:       workflowIdentifier.Domain,
+			Workflow:     workflowIdentifier.Name,
+			ResourceType: admin.MatchableResource_QUALITY_OF_SERVICE_SPECIFICATION,
+		})
+		noSourceError := errors.New("no resource")
+
+		noServiceResponse := &interfaces.ResourceResponse{
+			Attributes: &admin.MatchingAttributes{
+				Target: &admin.MatchingAttributes_QualityOfService{
+					QualityOfService: getQualityOfServiceWithNilDuration(),
+				},
+			},
+		}
+
+		result, error := &interfaces.ResourceResponse{}, noSourceError
+
+		if containSpec {
+			result, error = noServiceResponse, nil
+		}
+
+		return result, error
+	}
+}
+
 func getWorkflowWithQosSpec(qualityOfService *core.QualityOfService) *admin.Workflow {
 	return &admin.Workflow{
 		Id: workflowIdentifier,
@@ -116,6 +156,23 @@ func TestGetQualityOfService_ExecutionCreateRequest(t *testing.T) {
 	})
 	assert.Nil(t, err)
 	assert.EqualValues(t, spec.QueuingBudget, 3*time.Minute)
+
+	_, failError := allocator.GetQualityOfService(context.Background(), GetQualityOfServiceInput{
+		Workflow: getWorkflowWithQosSpec(getQualityOfServiceWithDuration(4 * time.Minute)),
+		LaunchPlan: &admin.LaunchPlan{
+			Spec: &admin.LaunchPlanSpec{
+				QualityOfService: getQualityOfServiceWithDuration(2 * time.Minute),
+			},
+		},
+		ExecutionCreateRequest: &admin.ExecutionCreateRequest{
+			Domain: "production",
+			Spec: &admin.ExecutionSpec{
+				QualityOfService: getQualityOfServiceWithNilDuration(),
+			},
+		},
+	})
+	assert.Error(t, failError)
+
 }
 
 func TestGetQualityOfService_LaunchPlan(t *testing.T) {
@@ -137,6 +194,20 @@ func TestGetQualityOfService_LaunchPlan(t *testing.T) {
 	})
 	assert.Nil(t, err)
 	assert.EqualValues(t, spec.QueuingBudget, 2*time.Minute)
+
+	_, failError := allocator.GetQualityOfService(context.Background(), GetQualityOfServiceInput{
+		Workflow: getWorkflowWithQosSpec(getQualityOfServiceWithDuration(4 * time.Minute)),
+		LaunchPlan: &admin.LaunchPlan{
+			Spec: &admin.LaunchPlanSpec{
+				QualityOfService: getQualityOfServiceWithNilDuration(),
+			},
+		},
+		ExecutionCreateRequest: &admin.ExecutionCreateRequest{
+			Domain: "production",
+			Spec:   &admin.ExecutionSpec{},
+		},
+	})
+	assert.Error(t, failError)
 }
 
 func TestGetQualityOfService_Workflow(t *testing.T) {
@@ -156,6 +227,19 @@ func TestGetQualityOfService_Workflow(t *testing.T) {
 	})
 	assert.Nil(t, err)
 	assert.EqualValues(t, spec.QueuingBudget, 4*time.Minute)
+
+	_, failError := allocator.GetQualityOfService(context.Background(), GetQualityOfServiceInput{
+		Workflow: getWorkflowWithQosSpec(getQualityOfServiceWithNilDuration()),
+		LaunchPlan: &admin.LaunchPlan{
+			Spec: &admin.LaunchPlanSpec{},
+		},
+		ExecutionCreateRequest: &admin.ExecutionCreateRequest{
+			Domain: "production",
+			Spec:   &admin.ExecutionSpec{},
+		},
+	})
+	assert.Error(t, failError)
+
 }
 
 func TestGetQualityOfService_MatchableResource(t *testing.T) {
@@ -175,6 +259,33 @@ func TestGetQualityOfService_MatchableResource(t *testing.T) {
 	})
 	assert.Nil(t, err)
 	assert.EqualValues(t, spec.QueuingBudget, 5*time.Minute)
+
+	addGetErrorResourceFunc(t, &resourceManager, false)
+	_, failError := allocator.GetQualityOfService(context.Background(), GetQualityOfServiceInput{
+		Workflow: getWorkflowWithQosSpec(nil),
+		LaunchPlan: &admin.LaunchPlan{
+			Spec: &admin.LaunchPlanSpec{},
+		},
+		ExecutionCreateRequest: &admin.ExecutionCreateRequest{
+			Domain: "production",
+			Spec:   &admin.ExecutionSpec{},
+		},
+	})
+	assert.Error(t, failError)
+
+	addGetErrorResourceFunc(t, &resourceManager, true)
+	_, noSpecError := allocator.GetQualityOfService(context.Background(), GetQualityOfServiceInput{
+		Workflow: getWorkflowWithQosSpec(nil),
+		LaunchPlan: &admin.LaunchPlan{
+			Spec: &admin.LaunchPlanSpec{},
+		},
+		ExecutionCreateRequest: &admin.ExecutionCreateRequest{
+			Domain: "production",
+			Spec:   &admin.ExecutionSpec{},
+		},
+	})
+	assert.Error(t, noSpecError)
+
 }
 
 func TestGetQualityOfService_ConfigValues(t *testing.T) {