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This allows clients connecting using this username/password to subscribe on both the legacy STATE/PrimaryHostID, spBv1.0/STATE/PrimaryHostID topics and subscribe on the spBv1.0/GroupID/# topic.

Note
When configuring ACLs for an MQTT Engine client, you must also configure at MQTT Engine the SparkplugB Namespace Filter for the same Group or Group/EdgeNode combination for this topic.

Warning

When creating an Access Control List (ACL) for an MQTT Engine client, there :

There must be RW privilege's for the MQTT Sparkplug™ B STATE message
- Sparkplug v3.0.0 state message topic: spBv1.0/STATE/primary_host_

id

- id
- Legacy Sparkplug state message topic: STATE/PrimaryHostID
- Review Changes to the STATE message in the Sparkplug v3.0.0 Specification for details on the legacy STATE client topic
The MQTT Engine SparkplugB Namespace Filter must be configured for the same Group or Group/EdgeNode combination used in the ACL entry

Additional Resources

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