Why is " Update the search index to include the desired field " the correct answer?

When configuring a retriever in Data Cloud for PDF file ingestion, all necessary fields must be included in the search index. If a required field is missing, the correct action is to update the search index to ensure it is available for retrieval.

Key Considerations for Fixing Missing Fields in Data Cloud Retrievers:

Search Index Controls Which Fields Are Searchable

The search index defines which fields are indexed and accessible to the retriever.

If a field is missing, it must be added to the index before it can be queried.

Ensures Complete and Accurate Data Retrieval

Without indexing, the retriever cannot reference the missing field in AI responses.

Updating the index makes the field available for AI-powered retrieval.

Supports AI-Grounded Responses

Agentforce relies on Retriever-Augmented Generation (RAG) to ground AI responses in searchable Data Cloud content.

Ensuring all relevant fields are indexed improves AI-generated answer accuracy.

Why Not the Other Options?

❌ A. Create a new custom Data Cloud object that includes the desired field.

Incorrect because the issue is with indexing, not with Data Cloud object structure.

The field already exists in Data Cloud; it just needs to be indexed.

❌ C. Modify the retriever ' s configuration to include the desired field.

Incorrect because retriever configurations only define query rules; they do not modify the index itself.

Updating the search index is the required step to ensure the field is retrievable.

Agentforce Specialist References

Salesforce AI Specialist Material confirms that search indexing is required for retrievers to access specific fields in Data Cloud​.