The amount of products you should send depends on the Branded Stock™ plan you select and the number of photographers you require for your project.  By default, you are able to shoot a definite amount of products with a certain number of photographers per package: 

• The Product-Only Shoot: 1 product shot – 1 photographer/videographer
• The Campaign Shoot: Up to 9 products shot – Up to 3 photographers/videographers

However, this changes when you decide to add either more products to be shot or more creatives to whichever package. If you decide to add more photographers to your project regardless of your chosen plan, you will need to send out your products to them as well.