if "Data type" and "Data Store" are not showing in our environment in Appian Designer,here are the possible reasons and how to fix them.
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What kind of environment do you use? And what do you want to use Data Stores and Data Types for?
I am using a Appian community Edition Workspace W0196 create cdt purpose using Data Type and data store.
CDTs were old patterns, where they were mapped to a Data Store for saving data. However, CDT s are deprecated and Record Types are now the recommended way to work with data. If you still want to use CDTs for learning or working in community edition, you can try emailing communityedition@appian.com with your reason.
DS & DT is not supported on Community Edition. Use Records.