Error: cannot POST https://[tenant].au.auth0.com/dbconnections/signup (400)

[kientv]

I already remove all rules & hooks, but still get this error when signup:

Request URL: https://[tenant].au.auth0.com/dbconnections/signup
Request Method: POST
Status Code: 400
Remote Address: 104.18.236.45:443
cf-request-id: 07e005f81f0000c6b8b3ba4000000001

[stephanie.chamblee]

Hi @kientv,

When you go to your logs from your Auth0 dashboard, do you see the failed API call? There may be a helpful message there.

[kientv]

Thanks @stephanie.chamblee

This is my log in dashboard:

message: "{"fromSandbox":true,"statusCode":400}"

[stephanie.chamblee]

I see, “Cannot read property ‘0’ of undefined”… Are you using Universal Login? Also, what SDK are you using?

[kientv]

I’m using universal login.

[stephanie.chamblee]

Does this occur when you use the “Try it out” link from the “Getting Started” tab in your dashboard?

Would you mind sending me your tenant name in a private message so that I can take a look at the settings? Thanks!

[stephanie.chamblee]

To follow up, we were able to find the solution in a DM conversation!

The “Cannot read property ‘0’ of undefined” was thrown because of a custom DB get-users script.

Updated a line from user = body.items[0] to user = body.items.length && body.items[0]