Failed to authenticate zoom redirect URL while configuring zoom chat in Merge1

Problem

Failed to authenticate zoom chat app while configuring Zoom chat in Merge1

Error Message

Below error pops up in the browser when you provide the application ID and application secret/key in the Merge1 portal under the source tab and click next:

{"status":false,"errorCode":4700, "errorMessage":"Invalid redirect url","result":null}

Cause

The URL used in either location below is case sensitive and needs to be in lower case characters:

• Zoom marketplace, the "Redirect UTL for OAuth" and "Add Allow List" section wherein we provide the URLs
• 'UserSettings.config' file on Merge1 server under "Installation path:/GlobanetConsultingService/Merge1 7.0

Solution

Changed all the capital letters in the URL to small case and updated the URL in two areas.
1) Zoom market place->Manage->Redirect UTL for OAuth and Add Allow List section.

2) On Merge1 server went to "Installation path:/GlobanetConsultingService/Merge1 7.0 accessed 'UserSettings.config' file and replaced the URL in the lines below:

<add key="SiteUrl" value="URL/"/>

<add key="ResourceUrl" value="URL/"/>

<add key="OAuthCallbackUrl" value=URL/"/>