There are a few terms to know when preparing to run a Slack import: Workspace Owners/Admins and Org Owners can export data from Slack. You can set certain channels to Dont import, while setting other channels to Merge with existing channel, Create new public channel, or Create new private channel. That depends on the number of channels, users and files that are being imported rather than the size of an export file. Tip: If you decide to run a new import after reversing one, you can set users to merge with the existing accounts created by your previous import. If youre having any trouble, contact us for help with planning your import. Upload the .zip file exported from Slack and choose a web address for your new Flock team. Yes click the Reverse Import button to cancel and reverse an import. However, there are some occasions where it might be necessary for an app to actively seek out a message and find it in the wild. You can set certain channels to Dont import, while setting other channels to Merge with existing channel, Create new public channel or Create new private channel. Go to the channel from where you want to add users in bulk. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e3\/Merge-Channels-on-Slack-Step-1.jpg\/v4-460px-Merge-Channels-on-Slack-Step-1.jpg","bigUrl":"\/images\/thumb\/e\/e3\/Merge-Channels-on-Slack-Step-1.jpg\/aid9416953-v4-728px-Merge-Channels-on-Slack-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"