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Extra fields can be used to acquire additional information from a customer upon subscription


fieldType (String!)
Possible types: single_line, multi_line, date, single_select
id (ID!)
ID to identify the extra field with
name (String!)
Name of the extra field
position (Int)
The extra fields should be ordered by this field
project (Project!)
required (Boolean!)
Field is required to be filled
selectOptions ([String!])
Possible options when fieldType is dropdown
visibility (String!)
Enum with public or internal.