Unable to share Looker Studio data sources after bulk sharing (Free version – “Unknown error occurred”)

I am using the Looker Studio Free version in my organization.

We currently have around 220 data sources created. When I start sharing these data sources with end users or groups, the sharing works fine initially. However, after sharing approximately 10–15 data sources, I begin encountering an error while sharing any additional ones.

The error message shown is:

“An unknown error occurred – please try again later”

Once this error starts occurring, I am unable to share any further data sources for almost 1 hour, after which sharing starts working again.

Additional details:

  • I am the owner of the data sources

  • Sharing is done manually via the UI (Share with people and groups)

  • The issue consistently repeats after a small number of shares

  • No clear limit or quota information is shown in the UI

I want to understand:

  1. Is there a rate limit or quota on sharing data sources in Looker Studio Free?

  2. Is this a known limitation or bug?

  3. Are there any best practices or workarounds for sharing a large number of data sources (e.g., batching, automation, or admin settings)?

Any guidance or confirmation from the team or community would be very helpful.

Thanks in advance!

Looker Studio questions go here: Looker Studio - Google Developer forums

Done