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Object Storage Service:0010-00000216

Last Updated:Mar 20, 2026

Problem description

The tag value contains characters that are not UTF-8 encoded.

Causes

The tag value contains characters that are not encoded in UTF-8.

Examples

None

Solutions

Use only the following characters in tag keys and values:

  • Letters: az, AZ

  • Digits: 09

  • Spaces

  • Special characters: +, -, =, ., _, :, /

The following limits also apply:

ConstraintLimit
Tags per objectUp to 10; each key must be unique
Tag key lengthUp to 128 characters
Tag value lengthUp to 256 characters
Case sensitivityKeys and values are case-sensitive
Important

If you pass tags in an HTTP request header and the tag keys or values contain special characters, URL-encode both the key and the value. For example, encode a space as %20:

Original value:   my file
URL-encoded value: my%20file

References