Custom app distribution: redemption codes

Good day.

I am in the process of launching an application for a client that will need to use Apple Business Manager, due to the type of application that was created for them.

My questions are:

Do the users of the application need to do any kind of registration or be invited to the organization to use the redemption codes?

Can a mass redemption code be used or must one be generated for each user?

Does the creation of each redemption code, as well as the Apple Business Manager account, have any additional cost associated with it after some threehold of use?

Thanks.

Custom app distribution: redemption codes
 
 
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