# Feeds overview

This section specifies the feed files used to transmit your
inventory data to the Actions Center. The contents of your feeds defines
which services you are providing and what services are available.

The structure of the inventory feeds are defined by the Google Maps Booking
API.

The following feeds are mandatory for the Local Services Ads Redirect integration:

- **[Entity feed](https://developers.google.com/actions-center/verticals/local-services/redirect/reference/feeds/entity-feed):** Contains data describing your entities.

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- **[Action feed](https://developers.google.com/actions-center/verticals/local-services/redirect/reference/feeds/action-feed):** Contains data describing your deep links associated with your entities.

Some fields in these feeds are required and some are optional. Any field
marked as optional can be left out of the feed when empty.

The feeds format is described using protocol buffer 3 syntax. You have the
option to upload the feeds file as a binary serialization of the protocol
buffer data in [pb3 format](https://developers.google.com/protocol-buffers/docs/proto3) or in a derived JSON format.
We recommend uploading the feeds in JSON format.

We recommend using
[gzip to compress feeds](https://developers.google.com/actions-center/verticals/local-services/redirect/reference/tutorials/compression) prior to upload.

This guide is specific to the Actions Center protocol buffers. For
general information on how to use the protocol buffers to generate a pb3
file,
[here is an example in Java](https://developers.google.com/protocol-buffers/docs/javatutorial).