We've switched from service account keys to serviceAccountIds (or tried to) so we can clean up all the rouge keys we have. After rolling out the change we're seeing:
Permission iam.serviceAccounts.signBlob is required to perform this operation on service account projects/-/serviceAccounts/[email protected].; Please refer to https://firebase.google.com/docs/auth/admin/create-custom-tokens for more details on how to use and troubleshoot this feature....}}
The thing is, we've definitely got the correct role applied (see attachment). We've even tried a few more for good measure.
Thanks!
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