Constant values | Drupal guide on Drupal.org

Sometimes you need a constant value. Perhaps it's for the concatenation plugin or simply some value that is always fixed. In this case, first you need to define a constant in the source and then use it as any other in your process. The following example sets the value of the id destination property to node_search: source: constants: id: node_search process: id: constants/id Note that the constants