diff --git a/models/resources/purchase_resource/purchase_resource.go b/models/resources/purchase_resource/purchase_resource.go
index ec416a5..2a5b9bf 100644
--- a/models/resources/purchase_resource/purchase_resource.go
+++ b/models/resources/purchase_resource/purchase_resource.go
@@ -9,12 +9,14 @@ import (
 
 type PurchaseResource struct {
 	utils.AbstractObject
-	DestPeerID   string                 `json:"dest_peer_id" bson:"dest_peer_id"`
-	PricedItem   map[string]interface{} `json:"priced_item,omitempty" bson:"priced_item,omitempty" validate:"required"`
-	ExecutionsID string                 `json:"executions_id,omitempty" bson:"executions_id,omitempty" validate:"required"` // ExecutionsID is the ID of the executions
-	EndDate      *time.Time             `json:"end_buying_date,omitempty" bson:"end_buying_date,omitempty"`
-	ResourceID   string                 `json:"resource_id" bson:"resource_id" validate:"required"`
-	InstanceID   string                 `json:"instance_id,omitempty" bson:"instance_id,omitempty" validate:"required"` // could be a Compute or a Storage
+	DestPeerID  string                 `json:"dest_peer_id" bson:"dest_peer_id"`
+	PricedItem  map[string]interface{} `json:"priced_item,omitempty" bson:"priced_item,omitempty" validate:"required"`
+	ExecutionID string                 `json:"execution_id,omitempty" bson:"execution_id,omitempty" validate:"required"` // ExecutionsID is the ID of the executions
+
+	ExecutionsID string     `json:"executions_id,omitempty" bson:"executions_id,omitempty" validate:"required"` // ExecutionsID is the ID of the executions
+	EndDate      *time.Time `json:"end_buying_date,omitempty" bson:"end_buying_date,omitempty"`
+	ResourceID   string     `json:"resource_id" bson:"resource_id" validate:"required"`
+	InstanceID   string     `json:"instance_id,omitempty" bson:"instance_id,omitempty" validate:"required"` // could be a Compute or a Storage
 
 	ResourceType tools.DataType `json:"resource_type" bson:"resource_type" validate:"required"`
 }
diff --git a/models/workflow_execution/workflow_execution.go b/models/workflow_execution/workflow_execution.go
index 0b0e637..c383864 100755
--- a/models/workflow_execution/workflow_execution.go
+++ b/models/workflow_execution/workflow_execution.go
@@ -167,6 +167,7 @@ func (d *WorkflowExecution) buyEach(bs pricing.BillingStrategy, executionsID str
 				Name: d.GetName() + "_" + executionsID + "_" + wfID,
 			},
 			PricedItem:   m,
+			ExecutionID:  d.GetID(),
 			ExecutionsID: executionsID,
 			DestPeerID:   priced.GetCreatorID(),
 			ResourceID:   priced.GetID(),