Backblaze B2 - parameter verification errors (400)

Aug 9, 2025
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I keep getting the following when trying to add a S3 backed datastore:

parameter verification errors (400)

backend: schema validation failed: Bucket name does not match the regex pattern

No matter what I try, I can't get the error to disappear.

Thanks in advance!

PBSError.png
 
Hi,
please use an all lower case characters in bucket names, the PBS S3 client implementation tries to stick to the bucket naming rules as defined in https://docs.aws.amazon.com/AmazonS3/latest/userguide/bucketnamingrules.html
Hey,
but the rules in your link states:
  • Bucket names can consist only of lowercase letters, numbers, periods (.), and hyphens (-).
Why nevertheless are periods and hyphens not allowed in the PBS client?

Greetings
Stefan