diff --git a/models/workflow_execution/workflow_execution.go b/models/workflow_execution/workflow_execution.go
index c026faf..bb492d4 100644
--- a/models/workflow_execution/workflow_execution.go
+++ b/models/workflow_execution/workflow_execution.go
@@ -104,13 +104,13 @@ func (d *WorkflowExecutions) VerifyAuth(request *tools.APIRequest) bool {
 	return true
 }
 
-func (d *WorkflowExecutions) Book(priceds map[tools.DataType][]pricing.PricedItemITF, request *tools.APIRequest) []*booking.Booking {
-	booking := d.bookEach(tools.STORAGE_RESOURCE, priceds[tools.STORAGE_RESOURCE], request)
-	booking = append(booking, d.bookEach(tools.PROCESSING_RESOURCE, priceds[tools.PROCESSING_RESOURCE], request)...)
+func (d *WorkflowExecutions) Book(priceds map[tools.DataType][]pricing.PricedItemITF) []*booking.Booking {
+	booking := d.bookEach(tools.STORAGE_RESOURCE, priceds[tools.STORAGE_RESOURCE])
+	booking = append(booking, d.bookEach(tools.PROCESSING_RESOURCE, priceds[tools.PROCESSING_RESOURCE])...)
 	return booking
 }
 
-func (d *WorkflowExecutions) bookEach(dt tools.DataType, priceds []pricing.PricedItemITF, request *tools.APIRequest) []*booking.Booking {
+func (d *WorkflowExecutions) bookEach(dt tools.DataType, priceds []pricing.PricedItemITF) []*booking.Booking {
 	items := []*booking.Booking{}
 	for _, priced := range priceds {
 		start := d.ExecDate
@@ -123,6 +123,7 @@ func (d *WorkflowExecutions) bookEach(dt tools.DataType, priceds []pricing.Price
 			ResourceID:        priced.GetID(),
 			ResourceType:      dt,
 			DestPeerID:        priced.GetCreatorID(),
+			ExecutionID:       d.GetID(),
 			ExpectedStartDate: start,
 			ExpectedEndDate:   &end,
 		}