# Match unknown vendors {% hint style="success" %} **Access Type**: Compliance Report - Viewer or Editor {% endhint %} When Didomi generates a compliance report we will match found vendors found on your domain to Didomi's database of known vendors. Any unknown vendors will be surfaced in the compliance report's compliance issues section as **unmatched** (Didomi is unable to match the vendor's domain with any found in our database). It is possible that a vendor discovered on your organization's domain is not represented in our database because:


Existing vendor in database	The vendor is actually known in the Didomi database for using a particular domain but has started using another domain as well. Example: Vendor X is known in our database to use the `vendorx.com` domain but has since started to use `vendorx.it` as well.
New vendor	Vendor is completely unknown in the Didomi database.

In either of the cases above, the unknown vendor can be matched to an existing or new vendor in the Didomi database. In this article, we will cover how to manually match an unknown vendor. Click **Compliance Report** on the left-hand panel and selecting **Details** inline with a domain on the subsequent page.

Click the **Compliance issues** tab to review the issues catalogued for the compliance report.

Expand the accordion for **vendors or initiators that are unknown to our database, review them to be sure they are legit** and click **Match Vendors**.

Select the unknown vendor domain to match on the subsequent page and click **Find a match for selected domains**.

With the unmatched vendors selected your organization can either: * [Match unknown vendor to existing vendor](#match-unknown-vendor-to-existing-vendor) * [Create new vendor to match](#create-new-vendor-in-database-to-match) *** ### Match unknown vendor to existing vendor Use the provided search function to search the Didomi vendor database for the vendor to which you wish to match the unknown vendor. Once the target vendor has been identified, click **Match to this vendor** inline with the vendor name. {% hint style="info" %} Ensure the correct vendor is selected, particularly if your organization have created any custom vendors that share the same name with IAB or Global ATP vendors. {% endhint %}

The unknown vendor domains will be matched to your selected vendor in future iterations of the compliance report. ### Create new vendor to match If no match is found in the database for the unknown vendor, click **Create new vendor** to add a custom vendor to your organization's Didomi account.

Use the subsequent data manager page to [create a new custom vendor](/data-manager/vendors/create-custom-vendor.md). {% hint style="info" %} The Domains owned by the vendor section of the page should be pre-populated with the selected unknown vendor domain(s). {% endhint %} Click **Save** when finished.

The unknown vendor domains will be matched to your newly created custom vendor in future iterations of the compliance report. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.didomi.io/compliance-report/compliance-report-results/match-unknown-vendors.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.