When I tried to sign up with my new custom field i...
# support-questions
d
When I tried to sign up with my new custom field it fails with the response:
Copy code
json
{
    "message": "Are you sending too many / too few formFields?"
}
What are the causes for this? What do I need to provide?
r
hey @User you need to have the field ID provided on the backend as well.
d
oh
I haven't applied it on the backend
thanks
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