Problem Definition

Currently there is a limit of 10 users that can be invited at the same time in the instance.

Suggested Solutions

There are use cases where the admin invites batches of users, in some cases way more than 10 users. It would be great and convenient to be able to invite more users.

Workaround

Bulk adding users can be done through REST API using the endpoint 'Create user' – POST /rest/api/3/user.

https://developer.atlassian.com/cloud/jira/platform/rest/v3/api-group-users/#api-rest-api-3-user-post

This is documented at Create users in Atlassian Cloud using Postman and REST APIs