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1. Access the Product Requirements Editor (PREd) web application, using your username and password.
2. Select the data you require by browsing the ECMWF catalogue of real-time products. This web catalogue reflects the forecast products available for dissemination.​
3. If changes are required to your licence (for example, the addition of high-frequency products) contact us by raising a ticket through the Support Portal.
4. Modify your real-time requirements in the Product Requirements Editor (PREd)
   Requirements are validated according to:​
   1. What's available
   2. ​Which data you are permitted to access (not all customers pay to access the high-frequency products).
5. Once the data has been installed, files are produced by the product generation system - you can review these files on the ECMWF Production Data Store (ECPDS)

Getting started with the Product Requirements Editor

Requirements are grouped in logical containers. At the top level we have the organisation. Organisation contains 1 or more destinations, each representing a physical host. 

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