Index: src/wp-admin/includes/privacy-tools.php
===================================================================
--- src/wp-admin/includes/privacy-tools.php	(revision 49966)
+++ src/wp-admin/includes/privacy-tools.php	(working copy)
@@ -20,7 +20,7 @@
 	$request    = get_post( $request_id );
 
 	if ( ! $request || 'user_request' !== $request->post_type ) {
-		return new WP_Error( 'privacy_request_error', __( 'Invalid user privacy request.' ) );
+		return new WP_Error( 'privacy_request_error', __( 'Invalid personal data request.' ) );
 	}
 
 	$result = wp_send_user_request( $request_id );
@@ -28,7 +28,7 @@
 	if ( is_wp_error( $result ) ) {
 		return $result;
 	} elseif ( ! $result ) {
-		return new WP_Error( 'privacy_request_error', __( 'Unable to initiate user privacy confirmation request.' ) );
+		return new WP_Error( 'privacy_request_error', __( 'Unable to initiate confirmation for personal data request.' ) );
 	}
 
 	return true;
@@ -49,7 +49,7 @@
 	$request    = wp_get_user_request( $request_id );
 
 	if ( ! $request ) {
-		return new WP_Error( 'privacy_request_error', __( 'Invalid user privacy request.' ) );
+		return new WP_Error( 'privacy_request_error', __( 'Invalid personal data request.' ) );
 	}
 
 	update_post_meta( $request_id, '_wp_user_request_completed_timestamp', time() );
@@ -104,7 +104,7 @@
 					add_settings_error(
 						'action_type',
 						'action_type',
-						__( 'Invalid user privacy action.' ),
+						__( 'Invalid personal data action.' ),
 						'error'
 					);
 				}
@@ -116,7 +116,7 @@
 					add_settings_error(
 						'action_type',
 						'action_type',
-						__( 'Invalid user privacy action.' ),
+						__( 'Invalid personal data request action.' ),
 						'error'
 					);
 				}
@@ -297,7 +297,7 @@
  */
 function wp_privacy_generate_personal_data_export_file( $request_id ) {
 	if ( ! class_exists( 'ZipArchive' ) ) {
-		wp_send_json_error( __( 'Unable to generate user privacy export file. ZipArchive not available.' ) );
+		wp_send_json_error( __( 'Unable to generate personal data export file. ZipArchive not available.' ) );
 	}
 
 	// Get the request.
@@ -304,13 +304,13 @@
 	$request = wp_get_user_request( $request_id );
 
 	if ( ! $request || 'export_personal_data' !== $request->action_name ) {
-		wp_send_json_error( __( 'Invalid request ID when generating user privacy export file.' ) );
+		wp_send_json_error( __( 'Invalid request ID when generating personal data export file.' ) );
 	}
 
 	$email_address = $request->email;
 
 	if ( ! is_email( $email_address ) ) {
-		wp_send_json_error( __( 'Invalid email address when generating user privacy export file.' ) );
+		wp_send_json_error( __( 'Invalid email address when generating personal data export file.' ) );
 	}
 
 	// Create the exports folder if needed.
@@ -318,7 +318,7 @@
 	$exports_url = wp_privacy_exports_url();
 
 	if ( ! wp_mkdir_p( $exports_dir ) ) {
-		wp_send_json_error( __( 'Unable to create user privacy export folder.' ) );
+		wp_send_json_error( __( 'Unable to create personal data export folder.' ) );
 	}
 
 	// Protect export folder from browsing.
@@ -326,7 +326,7 @@
 	if ( ! file_exists( $index_pathname ) ) {
 		$file = fopen( $index_pathname, 'w' );
 		if ( false === $file ) {
-			wp_send_json_error( __( 'Unable to protect user privacy export folder from browsing.' ) );
+			wp_send_json_error( __( 'Unable to protect personal data export folder from browsing.' ) );
 		}
 		fwrite( $file, '<!-- Silence is golden. -->' );
 		fclose( $file );
@@ -395,7 +395,7 @@
 	$file = fopen( $json_report_pathname, 'w' );
 
 	if ( false === $file ) {
-		wp_send_json_error( __( 'Unable to open user privacy export file (JSON report) for writing.' ) );
+		wp_send_json_error( __( 'Unable to open personal data export file (JSON report) for writing.' ) );
 	}
 
 	fwrite( $file, '{' );
@@ -410,7 +410,7 @@
 	$file = fopen( $html_report_pathname, 'w' );
 
 	if ( false === $file ) {
-		wp_send_json_error( __( 'Unable to open user privacy export file (HTML report) for writing.' ) );
+		wp_send_json_error( __( 'Unable to open personal data export (HTML report) for writing.' ) );
 	}
 
 	fwrite( $file, "<!DOCTYPE html>\n" );
@@ -504,11 +504,11 @@
 	$zip = new ZipArchive;
 	if ( true === $zip->open( $archive_pathname, ZipArchive::CREATE ) ) {
 		if ( ! $zip->addFile( $json_report_pathname, 'export.json' ) ) {
-			$error = __( 'Unable to add data to user privacy export file (JSON format).' );
+			$error = __( 'Unable to archive the personal data export file (JSON format).' );
 		}
 
 		if ( ! $zip->addFile( $html_report_pathname, 'index.html' ) ) {
-			$error = __( 'Unable to add data to user privacy export file (HTML format).' );
+			$error = __( 'Unable to archive the personal data export file (HTML format).' );
 		}
 
 		$zip->close();
@@ -529,7 +529,7 @@
 			do_action( 'wp_privacy_personal_data_export_file_created', $archive_pathname, $archive_url, $html_report_pathname, $request_id, $json_report_pathname );
 		}
 	} else {
-		$error = __( 'Unable to open user privacy export file (archive) for writing.' );
+		$error = __( 'Unable to open personal data export file (archive) for writing.' );
 	}
 
 	// Remove the JSON file.
@@ -758,7 +758,7 @@
 	$request = wp_get_user_request( $request_id );
 
 	if ( ! $request || 'export_personal_data' !== $request->action_name ) {
-		wp_send_json_error( __( 'Invalid request ID when merging user privacy exporter data.' ) );
+		wp_send_json_error( __( 'Invalid request ID when merging the exporter personal data.' ) );
 	}
 
 	$export_data = array();
@@ -909,7 +909,7 @@
 	$request = wp_get_user_request( $request_id );
 
 	if ( ! $request || 'remove_personal_data' !== $request->action_name ) {
-		wp_send_json_error( __( 'Invalid request ID when processing user privacy eraser data.' ) );
+		wp_send_json_error( __( 'Invalid request ID when processing personal data to erase.' ) );
 	}
 
 	/** This filter is documented in wp-admin/includes/ajax-actions.php */
Index: src/wp-includes/user.php
===================================================================
--- src/wp-includes/user.php	(revision 49966)
+++ src/wp-includes/user.php	(working copy)
@@ -3123,7 +3123,7 @@
 }
 
 /**
- * Get all user privacy request types.
+ * Get all personal data request types.
  *
  * @since 4.9.6
  * @access private
@@ -3805,7 +3805,7 @@
 	);
 
 	if ( $requests_query->found_posts ) {
-		return new WP_Error( 'duplicate_request', __( 'An incomplete user privacy request for this email address already exists.' ) );
+		return new WP_Error( 'duplicate_request', __( 'An incomplete personal data request for this email address already exists.' ) );
 	}
 
 	$request_id = wp_insert_post(
@@ -3873,7 +3873,7 @@
 	$request    = wp_get_user_request( $request_id );
 
 	if ( ! $request ) {
-		return new WP_Error( 'invalid_request', __( 'Invalid user privacy request.' ) );
+		return new WP_Error( 'invalid_request', __( 'Invalid personal data request.' ) );
 	}
 
 	// Localize message content for user; fallback to site default for visitors.
@@ -4061,15 +4061,15 @@
 	$key_request_time = $request->modified_timestamp;
 
 	if ( ! $request || ! $saved_key || ! $key_request_time ) {
-		return new WP_Error( 'invalid_request', __( 'Invalid user privacy request.' ) );
+		return new WP_Error( 'invalid_request', __( 'Invalid personal data request.' ) );
 	}
 
 	if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) {
-		return new WP_Error( 'expired_request', __( 'This user privacy request has expired.' ) );
+		return new WP_Error( 'expired_request', __( 'This personal data request has expired.' ) );
 	}
 
 	if ( empty( $key ) ) {
-		return new WP_Error( 'missing_key', __( 'This user privacy request is missing the confirmation key.' ) );
+		return new WP_Error( 'missing_key', __( 'The confirmation key is missing from this personal data request.' ) );
 	}
 
 	if ( empty( $wp_hasher ) ) {
@@ -4088,11 +4088,11 @@
 	$expiration_time     = $key_request_time + $expiration_duration;
 
 	if ( ! $wp_hasher->CheckPassword( $key, $saved_key ) ) {
-		return new WP_Error( 'invalid_key', __( 'This user privacy request confirmation key is invalid.' ) );
+		return new WP_Error( 'invalid_key', __( 'The confirmation key is invalid for this personal data request.' ) );
 	}
 
 	if ( ! $expiration_time || time() > $expiration_time ) {
-		return new WP_Error( 'expired_key', __( 'This user privacy request confirmation key has expired.' ) );
+		return new WP_Error( 'expired_key', __( 'The confirmation key has expired for this personal data request.' ) );
 	}
 
 	return true;
Index: tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php
===================================================================
--- tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php	(revision 49966)
+++ tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php	(working copy)
@@ -164,7 +164,7 @@
 		$request_id = wp_create_user_request( 'removal-requester@example.com', 'remove_personal_data' );
 
 		$this->expectException( 'WPDieException' );
-		$this->expectOutputString( '{"success":false,"data":"Invalid request ID when generating user privacy export file."}' );
+		$this->expectOutputString( '{"success":false,"data":"Invalid request ID when generating personal data export file."}' );
 		wp_privacy_generate_personal_data_export_file( $request_id );
 	}
 
@@ -175,7 +175,7 @@
 	 */
 	public function test_invalid_request_id() {
 		$this->expectException( 'WPDieException' );
-		$this->expectOutputString( '{"success":false,"data":"Invalid request ID when generating user privacy export file."}' );
+		$this->expectOutputString( '{"success":false,"data":"Invalid request ID when generating personal data export file."}' );
 		wp_privacy_generate_personal_data_export_file( 123456789 );
 	}
 
@@ -195,7 +195,7 @@
 		);
 
 		$this->expectException( 'WPDieException' );
-		$this->expectOutputString( '{"success":false,"data":"Invalid email address when generating user privacy export file."}' );
+		$this->expectOutputString( '{"success":false,"data":"Invalid email address when generating personal data export file."}' );
 		wp_privacy_generate_personal_data_export_file( $request_id );
 	}
 
@@ -209,7 +209,7 @@
 		touch( untrailingslashit( self::$exports_dir ) );
 
 		$this->expectException( 'WPDieException' );
-		$this->expectOutputString( '{"success":false,"data":"Unable to create user privacy export folder."}' );
+		$this->expectOutputString( '{"success":false,"data":"Unable to create personal data export folder."}' );
 		wp_privacy_generate_personal_data_export_file( self::$export_request_id );
 	}
 
Index: tests/phpunit/tests/privacy/wpPrivacyProcessPersonalDataExportPage.php
===================================================================
--- tests/phpunit/tests/privacy/wpPrivacyProcessPersonalDataExportPage.php	(revision 49966)
+++ tests/phpunit/tests/privacy/wpPrivacyProcessPersonalDataExportPage.php	(working copy)
@@ -367,7 +367,7 @@
 		$invalid_request_id = 0;
 
 		// Process data, given the last exporter, on the last page and send as email.
-		$this->_setup_expected_failure( '{"success":false,"data":"Invalid request ID when merging user privacy exporter data."}' );
+		$this->_setup_expected_failure( '{"success":false,"data":"Invalid request ID when merging the exporter personal data."}' );
 
 		wp_privacy_process_personal_data_export_page(
 			$response,
@@ -399,7 +399,7 @@
 		$request_id = wp_create_user_request( self::$requester_email, 'remove_personal_data' );
 
 		// Process data, given the last exporter, on the last page and send as email.
-		$this->_setup_expected_failure( '{"success":false,"data":"Invalid request ID when merging user privacy exporter data."}' );
+		$this->_setup_expected_failure( '{"success":false,"data":"Invalid request ID when merging the exporter personal data."}' );
 
 		wp_privacy_process_personal_data_export_page(
 			$response,