For this fifth paper, please provide at least a 500-word Analysis of the fifth marketing step - Sustainability. 

Based on your other four papers, determine how sustainability works for your product and how that aspect can be marketed to customers. Sustainability also means that the marketing itself lasts longer than a 1-time campaign. Provide examples of how you plan to make marketing last for the new product and how you plan to have the product last across the product life cycle. 

Innovation, Recycling, Reusing, Repurposing, Replenishing, and other R's should be discussed.  Explain how sustainable marketing connects with the 4 P's and how the R's can bring the product back to another stage in the product life cycle. 

Identify if there are any challenges associated with this step in the process, any advantages that the companies may have, and how much competition is at this level of the production process within Marketing. 

Remember to include innovations being utilized or tested and emphasize the sustainability efforts to preserve the resource and any recycling, reusing, or repurposing that may be involved with this step.  Alternatively, refunding and returns may be part of the restocking and reselling process; do not forget how businesses deal with this aspect of sustainability.