Search fails to find specific Business Central AL property documentation pages

[DennisFranzmannGOB]

The Microsoft Docs MCP server's search functionality fails to locate specific Business Central AL property documentation pages, even when using precise and relevant search terms.

Example:

When searching for "PreserveWhitespace property XMLport Business Central AL", the search should return the official AL property documentation page: https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/properties/devenv-preservewhitespace-property but
multiple search attempts with various keyword combinations failed to return the AL property documentation.

Instead, searches consistently returned:

• .NET XmlDocument.PreserveWhitespace property documentation
• MSXML IXMLDOMDocument.preserveWhiteSpace references
• Generic AL development overview pages

This search limitation led to:

• Incorrect conclusion that the property doesn't exist in AL
• Multiple unnecessary search attempts (token loss)
• Poor user experience requiring manual URL discovery

Repro:

1. Use MS Docs MCP server search tool
2. prompt eg: "Query the Business Central AL docs if there is some sort of preserve white spaces property that applies to Xml Port objects"
3. Observe that results don't include the actual AL documentation site url.

ive tested this with github copilot (Models: gpt 4.1, gpt 5, Sonnet 4, Gemini 2.5 pro) and with Cline.
Versions:
copilot: 1.364.0
Cline: 3.26.6

[TianqiZhang]

@DennisFranzmannGOB thank you for reaching out and reporting this issue! I can confirm that I can reproduce this on my end. We will investigate and get back to you.

[partychen]

@DennisFranzmannGOB Thank you for your feedback. We have expanded the scope and indexed the documents under /dynamics365.

Apologies for the delayed response—we needed time to carefully evaluate the content to ensure the quality of the documents after indexed under /dynamic365.