PKCE - invalid_client

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I’m attempting to add PKCE to an OAuth flow that previously worked.
I am able to get the Authorization code ,with below request

/oauth/authorize?response_type=code&code_challenge_method=S256&client_id=<Client_ID>&scope=openid profile email accounting.transactions offline_access&<code_chalenge>

but when I pass the code in below URL (Access token request).

URL : /oauth/token
Method : POST
Body : {
grant_type : authorization_code
code : <Authorization_Code>
redirect_uri: /
code_verifier : <Code_Verifier>

“reason”: “Invalid client_id or client_secret”,
“error”: “invalid_client”

Which App Type (OAuth / Chatbot / JWT / Webhook)?

Which Endpoint/s?

How To Reproduce (If applicable)
Steps to reproduce the behavior:

Screenshots (If applicable)
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Additional context
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Hey @vsivasankar,

Thank you for reaching out to the Zoom Developer Forum. I see that you submitted a ticket for this. I make sure to follow up with you there.