Declare custom variables in forms data source

Data sources are provided by back end projects located on your Convertigo Server.

Theses are Sequences named by formssource_* with variables starting with forms_* (* is a wildcard string)

To add a custom variable to the data source, you have to add a variable with the correct naming syntax to the Sequence in the Studio and deploy the project to your Convertigo Server

https://doc.convertigo.com/documentation/develop/programming-guide/creating-data-for-c8o-forms/#make-a-data-source-sequence-ready-for-convertigo-form-builder