Einstein Bot Change Set Migration Error: Invalid value for Bot User field given

To complete the migration, temporarily set the bot user to “Basic Chatbot User” in the source organization and include it in the change set for release.

Steps:

1. In the source organization, navigate to [SetUp] > [Einstein ]>[EinsteinPlatform ]>[Einstein Bots].
2. Select the bot to migrate.
3. From the dropdown menu in the upper-right corner of the Bot Builder screen.
4. Click the pencil icon next to the Bot User field in the Settings section, change it to “Basic Chatbot User,” and save.　　

After successfully releasing the change set, navigate to the destination org and reconfigure the Bot User field to the appropriate user for that environment — the temporary 'Basic Chatbot User' setting should not remain in production.