Federated Search Considerations

When setting up federated search, familiarize yourself with the nice-to-knows and limitations.

• A custom tab isn’t required for the external object to appear in search results. If you created a custom tab, the source could show up both under External Results and in the list of objects.
• On the search results page, column resizing and text wrapping aren’t available for external results.
• Federated Search supports only external lookup relationships, and the Federated Search external object is always the parent.
• Unlike Salesforce Connect, Federated Search external objects only contain fields defined by the external data source. In addition, unlike other external data sources, Federated Search is meant to display search result information, not records.
• The following limits also apply:

  Maximum number of new search results per hour	100,000 per org This is a joint limit among all external data sources. For example, if you have OData and OpenSearch sources, the limit includes both usages.
  Maximum external objects per org	200 This is a joint limit among all external data sources. If the default value for external objects in your org is 100, create a support case to increase your org limit to 200.
  Maximum length of the OAuth token that’s issued by the external system	4,000 characters