Not able to create a meeting with Zoom SDK

Getting below error when ZoomMtg.join is called…

  1. {method: “join”, status: false, result: null, errorMessage: " signatrue length error, 0 < length < 150", errorCode: 4003}

  2. errorCode: 4003

  3. errorMessage: " signatrue length error, 0 < length < 150"

  4. method: “join”

  5. result: null

  6. status: false

role = ‘1’

Hey @jitendra301979,

Do you see this when using the Sample Web App? If so, please make sure that you are passing in a valid API Key and Secret. From what I can see, you are using the correct API Key.

If that doesn’t help, please send an email to with a link to this thread. In that email, please include the signature that you’re using.


Ok… Thanks… let me check… if help needed i will mail the details…

Excellent, sounds good. Thank you!


Signature Used:

Signature :
[Redacted] = [Redacted] role = ‘1’ Still i am getting invalid signature error.

Hi, @jitendra301979,
Thank you for sharing that information. To align with best security practices, please either omit, email or direct message any Personal Identifiable Information ( PII ). To that end, it looks like you are passing in a JWT. Instead, you should be passing in a valid API Key here and Secret here. The API Key and Secret (see screenshot below) can be found on the App credentials page of your JWT App in Zoom Marketplace.

Please let me know if this helps.


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