Add-on installation fails when there is no default access group set in the product access

Issue Summary

When customers migrate from server to cloud, one of the steps is to review groups in the product access page and set the default access group (Use Jira site import from server to cloud - Step 8)

However, in cases where default access group is not set, the add-on installation in jira cloud will fail with the following error:

We ran into a little trouble. it might just be a hiccup. Try again in a bit.

Steps to Reproduce

• Scenario:  Customer has migrated from Server to cloud and default access group is not set in the product access
• Try to install a marketplace add-on in the instance

Expected Results

The add-on installation fails with UI error message stating:

There is no default group in Jira cloud product access. Please review groups imported from server and set a default access group for each product

Actual Results

The add-on installation fails with the following error message which is not helpful:

We ran into a little trouble. it might just be a hiccup. Try again in a bit.

Workaround

See the KB: Unable to Install any Cloud Add-ons