Getting the Client ID and Client Secret is fairly straightforward.

1. Log in to your Zoho account using the following URL:

   https://api-console.zoho.com/

2. Once logged in, you can create an application(client) and obtain the Client ID and Client Secret required for authentication.

Firstly Register a client

• Goto zoho developer console
• Choose the client type

• Select Server-Based Applications
• Enter the following details:

• Client Name: The name of your application you want to register with Zoho. ( Ex: "TxContact Markus" )
• Homepage URL: The URL of your web page. ( Ex: "https://tepro.txcontact.com/" )
• Authorized Redirect URIs: ( Ex: "https://tepro.txcontact.com/zoho/getZohoCode" ) A valid URL of your application to which Zoho Accounts redirects you with a grant token(code) after successful authentication. Redirect URI is most important, add valid domains like "https://tepro.txcontact.com/zoho/getZohoCode"
• Click CREATE.
• You will receive the following credentials:
  • Client ID: The consumer key generated from the connected app.
  • Client Secret: The consumer secret generated from the connected app.