Dorian Banutoiu from Canonicalized highlights the most common issues that you are likely to deal with when using a scatter plot in Tableau. A scatter plot is great for showing which employees are generating the most sales within their department or how many customers are visiting your store.
It is worth taking into consideration when using this chart type in Tableau that you are going to deal with common issues, which includes dealing with NULL values or synchronised axes. Dorian explains some approaches to dealing with these common scatter plot issues in Tableau.