I'm trying to create a Lambda function with tenant isolation enabled, but AWS says the tenancy configuration isn't supported for my account in the Region. Is there a setting I need to change?
How do I enable Lambda tenant isolation when the configuration isn't supported?
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cLover_undersigned
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Contact AWS Support and ask whether tenant isolation needs to be enabled for the specific account and Region. The reported issue was resolved as an account and Region enablement matter, so include both in the request along with the error and the function configuration you're trying to create.
If you need it in multiple accounts or Regions, mention each combination rather than assuming one enablement covers them all.
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It doesn't seem to fail for every account. One report said it worked in us-east-1 without a prior support request, while another saw the error there as well as in European Regions. Testing another Region may help narrow it down, but success there won't necessarily enable it elsewhere.
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Account age came up as a possible explanation because new accounts can have lower quotas. But the error was also reported in accounts more than 18 months old, so I wouldn't assume creating an older account or waiting will fix it.
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mostly+ready!ish~:
There wasn't a known self-service setting or quota request for this feature in the discussion, so Support seems like the best starting point.