? $group . '_address' : $location );
		$fields = $this->checkout_fields_controller->get_contextual_fields_for_location( $location, $document_object );

		// Holds values to be persisted to the customer object.
		$persist_fields = [];
		$errors         = new \WP_Error();

		// Validate individual fields agains the document object. Errors are added to the $errors object, and each field is validated regardless of other field errors.
		foreach ( $fields as $field_key => $field ) {
			$field_value = $field_values[ $field_key ];

			if ( empty( $field_value ) ) {
				if ( true === $field['required'] ) {
					$errors->add(
						'required_field',
						/* translators: %s: is the field label */
						sprintf( __( '%s is required', 'woocommerce' ), '<strong>' . $field['label'] . '</strong>' )
					);
					continue;
				}
				$persist_fields[ $field_key ] = '';
				continue;
			}

			$sanitized_field_value = $sanitized_field_values[ $field_key ];
			$valid_check           = $this->checkout_fields_controller->validate_field( $field, $sanitized_field_value );

			if ( is_wp_error( $valid_check ) && $valid_check->has_errors() ) {
				// Get one error message from the WP_Error object per field to avoid overlapping error messages.
				$errors->add( $valid_check->get_error_code(), $valid_check->get_error_message() );
				continue;
			}

			$persist_fields[ $field_key ] = $sanitized_field_value;
		}

		// Validate all fields for this location (this runs custom validation callbacks). If an error is found, no values will be persisted to the customer object.
		$location_validation = $this->checkout_fields_controller->validate_fields_for_location( $sanitized_field_values, $location, $group );

		if ( is_wp_error( $location_validation ) && $location_validation->has_errors() ) {
			$errors->merge_from( $location_validation );
			return $errors;
		}

		foreach ( $persist_fields as $field_key => $field_value ) {
			$this->checkout_fields_controller->persist_field_for_customer( $field_key, $field_value, $customer, $group );
		}

		return $errors->has_errors() ? $errors : true;
	}
}