Need Assistance: `discoveryengine.assistants.update` not listed in IAM

Hey Guys,​

I am currently working with generative AI-based agents (previously known as Vertex AI Agents, which have now been integrated into Dialogflow CX.)​

In exploring, I came across a new app category called Agentspace Enterprise, where I could connect data stores for enterprise search and conversational agents as well. However, I encountered difficulties when attempting to connect conversational agents. Specifically, I faced a permission error:​

Permission ‘discoveryengine.assistants.update’ denied on resource​

Upon checking the IAM permission manager, I couldn’t find this particular permission listed. Given that Agentspace Enterprise is currently in the preview stage, I’m wondering if this issue is due to its ongoing development.​

Can you guys provide any guidance on whether this is a known limitation during the preview phase, or if there’s a workaround to resolve this permission issue?

Here are some reference images:

The new Agentspace preview, available in the ‘Create App’ section under AI Applications (formerly known as Agent Builder):

Permission error:

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