Merge pull request #265540 from EXPEkesheth/patch-147

Added FAQ section

Author: prmerger-automator[bot]

articles/healthcare-apis/fhir/selectable-search-parameters.md

@@ -159,8 +159,14 @@ A reindex job can be executed against the entire FHIR service database or agains
 > [!NOTE]
 > A capability statement document is a set of behaviors for a FHIR server. A capability statement is available for the /metadata endpoint. `Enabled` search parameters are listed in the capability statement for your FHIR service.
 
+## Frequently Asked Questions
+
+**What is the behavior if the query is includes a search parameter with status 'Supported'?**
+
+The search parameter in the 'Supported' state needs to be reindexed. Until then, the search parameter is not activated. In case a query is executed on a non-active search parameter, the FHIR service will render a response without considering that search parameter. In the response, there will be a warning message indicating that the search parameter was not indexed and therefore not used in the query. To render an error in such situations, use the 'Prefer: handling' header with the value 'strict'. By setting this header, warnings will be reported as errors.
+
 ## Next steps
 
 [Define custom search parameters](how-to-do-custom-search.md)
 
-[!INCLUDE [FHIR trademark statement](../includes/healthcare-apis-fhir-trademark.md)]
+[!INCLUDE [FHIR trademark statement](../includes/healthcare-apis-fhir-trademark.md)]