title: forecast per customer using AWS Forecast
body: <p>I'm using AWS Forecast managed service for predicting customer expenditure over time.</p>
  
  <p>I understand I have to create a dataset group that contains the datasets: primaray, secondary and metadata. (And then import these into the group)</p>
  
  <p>One thing I can't get my head around is how to <em>organise</em> my datasets, and if I need a "Dataset Group" for each customer, or if I can merge all customer expenditure data into the same dataset?</p>
  
  <p>As I understand a Dataset Group can only contain a single primary dataset (merged customer data in this case). However, the spending by one customer has nothing to do with the spending of another. If merging all data into a single primary dataset, can I generate forecasts by filtering on the customer ID <strong>and</strong>  these separate forecasts will not be related to each other in any way?.</p>
  
  <p>Or, does this mean I have to create a Dataset Group per customer?</p>