Hi, I recommend that you upvote this idea to "Have separate Field API
names vs label names". Right now the field name in the backend has to be
the same as the label, which limits your options if you want to use
sentences, special characters, or the same field name across different
forms.
https://support.workfront.com/hc/en-us/community/posts/115006012627-Have-separate-Field-API-Names-vs-Label
Vincent Goodwin The Capital Group Companies