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title: "Manage Supplier Linking and Mapping"
canonical: "https://hub.freewheel.tv/space/OS/114786380/Manage%20Supplier%20Linking%20and%20Mapping"
format: markdown
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Overview Suppliers  create an important connection between OneStrata and an external provider platform, enabling data flow across systems. For Ad Server providers, there are two levels of Supplier linking and mapping: An Ad Server provider is linked to one or more Suppliers. A Supplier is mapped to an ad server site. For programmatic (DSP, Search, or Social) providers, there is one level of Supplier linking: A programmatic provider is linked to one or more Suppliers. For more information, see  Supplier Linking and Mapping . Manage External Provider to Supplier Linking There are two ways that the linking between the external integration provider and the OneStrata Supplier can be managed: (Recommended) Via the Provider Mappings grid Via a Credential record The Provider Mappings grid is the recommended way because it allows you to manage Supplier linking for all programmatic (DSP, Search, or Social) providers at the same time. Through a Credential record, you can only manage Supplier linking for the provider of that record. Manage Provider to Supplier Linking via the Provider Mappings Grid The Provider Mappings grid is for programmatic providers only. To link a Supplier to or unlink a Supplier from a programmatic provider via the Provider Mappings grid, do the following: Go to the  Admin  >  External Integrations  >  Provider Mappings  tab. In the Provider Mappings grid, for the desired provider, double-click the  Mapped Suppliers  field in the same row. In the dropdown window, select or deselect the Supplier(s) to link to or unlink from the provider. Click outside of the dropdown window to confirm the selection. Click  Save Changes .  Manage Provider to Supplier Linking via a Credential record To link a Supplier to or unlink a Supplier from an external provider via a Credential record, do the following: Go to the  Admin  >  External Integrations  >  Credentials  tab. Open a Credential record for the desired provider by clicking the name of the record in the  Name / ID  column of the Credentials grid. In the Credential record, go to the  Provider  tab. For  Linked Suppliers , select or deselect the Supplier(s) to link to or unlink from the provider. Click outside of the dropdown window to confirm the selection. Click  Save. Manage Supplier to Ad Server Site Mapping There are two ways that the mapping between OneStrata Supplier and ad server site can be managed: (Recommended) Via a Credential record Via the Ad Server dashboard Using a Credential record is the recommended way for managing Supplier to site mappings, because it is easier to find and modify the appropriate Ad Server provider. Managing Supplier mapping via the Ad Server dashboard requires first creating and/or finding a campaign that uses the desired Ad Server provider, which can be time-consuming. Manage Supplier to Site Mapping via a Credential Record To map a Supplier to or unmap a Supplier from an ad server site via a Credential record, do the following: Go to the  Admin  >  External Integrations  >  Credentials  tab. Open a Credential record for the desired Ad Server provider by clicking the name of the record in the  Name / ID  column of the Credentials grid. In the Credential record, go to the  Supplier Mapping  tab. If not logged in already, click  Log In  and log in to the Ad Server provider. Continue by doing one of the following: Action Steps Map a Supplier to an ad server site Click  Add Supplier  to open the  Add Supplier  widget. In the  Add Supplier  widget: For  Supplier , select the desired Supplier. Click  Add Supplier . This adds a new row for the Supplier in the Supplier Mapping grid. In the Supplier Mapping grid, for the newly added Supplier, click the  Site  field in the same row to start editing. Select the desired ad server site. Unmap a Supplier from an ad server site In the Supplier Mapping grid, for the desired Supplier, click the  Site  field in the same row to start editing. Clear the field by clicking the cancellation (white X in a grey circle) icon. Click  Save . Manage Supplier to Site Mapping via the Ad Server Dashboard To map a Supplier to or unmap a Supplier from an ad server site via the Ad Server dashboard, do the following: Open a campaign that contains an Ad Placement for the desired Ad Server provider. Go to the Ad Server dashboard of the Ad Server provider. If not logged in already, log in to the Ad Server provider. On the Ad Server dashboard, click  Supplier Mapping  to open the  Supplier/Site Mapping  widget. In the  Supplier/Site Mapping  widget, do one of the following: Action Steps Map a Supplier to an ad server site For the desired Supplier, click the  Supplier/Site Mapping  field in the same row. Enter at least three letters of the ad server site's name. Select the desired ad server site. Unmap a Supplier from an ad server site For the desired Supplier, click the  Supplier/Site Mapping  field in the same row to start editing. Clear the field by clicking the cancellation (white X in a grey circle) icon. Click  Apply .