> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/query-hcp/before-you-begin.md).

# Before you begin

In the HCP [Tenant Management Console](https://knowledge.hitachivantara.com/Documents/Storage/Content_Platform/8.1.2/Tenants_and_Namespaces/General_administrative_information/03_Tenant_Management_Console) and [System Management Console](https://knowledge.hitachivantara.com/Documents/Storage/Content_Platform/8.1.2/System_administration/HCP_administration/01_System_Management_Console), perform the following steps to set up HCP for queries from PDI:

1. In the Tenant Management Console at the tenant level, verify the following options are selected for you namespace:

   1. Under the **Protocols** tab, select **Enable REST API**.
   2. Under the **Settings** tab, select **Enable ACLs**.

   See [Enabling REST, S3 compatible, HSwift, and WebDAV access to namespace](https://knowledge.hitachivantara.com/Documents/Storage/Content_Platform/8.1.2/Tenants_and_Namespaces/Configuring_namespace_access_protocols/02_Configuring_the_REST%2C_S3_compatible%2C_HSwift%2C_and_WebDAV_APIs#Enabling_REST.2C_S3_compatible.2C_HSwift.2C_and_WebDAV_access_to_a_namespace) and [Enabling the use of ACLs](https://knowledge.hitachivantara.com/Documents/Storage/Content_Platform/8.1.2/Tenants_and_Namespaces/Managing_namespaces/04_Configuring_a_namespace#Enabling_the_use_of_ACLs) for more details.
2. In the System Management Console, go to the **Services** tab and verify that the following options for **MQE** (Metadata Query Engine) are selected:
   * **Enable metadata query API**
   * **Enable indexing**
   * **Enable indexing of custom metadata**\
     See [Configuring the metadata query engine](https://knowledge.hitachivantara.com/Documents/Storage/Content_Platform/8.1.2/System_administration/Search_administration/02_Metadata_query_engine#Configuring_the_metadata_query_engine) in the HCP documentation for more details.
3. In the Tenant Management Console on the level of your namespace, go to the **Services** tab, and verify that the following options for **Search** are selected:
   * **Enable search**
   * **Enable indexing**
   * **Enable indexing of custom metadata**
   * **Enable full custom metadata indexing**\
     See [Setting search and indexing options](https://knowledge.hitachivantara.com/Documents/Storage/Content_Platform/8.1.2/Tenants_and_Namespaces/Managing_search_and_indexing/10_Managing_search_and_indexing_for_an_individual_namespace#Setting_search_and_indexing_options) for more details.


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# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/query-hcp/before-you-begin.md?ask=<question>&goal=<endgoal>
```

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`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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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.