In the in-memory deployment the Workflow Server sends pending and finished processes to Studio, where they are persisted in the Studio's in-memory persistence layer. In order to connect to Studio, the Workflow Server needs a Studio connection and an authorized user.

The recommended way to enable the in-memory configuration for Workflow Server, is to activate the in-memory Spring profile. This will load the in-memory properties from the application-in-memory.properties. (See the official Spring Boot documentation) For starting the Workflow Server locally via an IDE or the Spring Boot Maven plugin, the Spring profiles to be activated are most likely dev,local,in-memory in that order.