In the realm of property feeds, there are two primary types of feeds: incremental and non-incremental.

Non-incremental feeds

Non-incremental feeds are a type of property feed that contain all the available properties at the time it is run, unlike incremental feeds that only contain new and updated properties. These feeds are commonly used to supply an agent’s properties to property portals, such as Kyero, ThinkSpain, Idealista, Fotocasa, Pisos.com, etc… Agents can also provide a generic OwnProperties feed containing their properties. Non-incremental feeds are particularly useful for agents who want to showcase their entire property portfolio portals.

In addition to non-incremental feeds, another important aspect to consider is the use of property backup feeds and client backup. The PROPERTYBACKUP@ feed allows for a full restoration of property data in case of loss, while the client backup provides a full backup of the contact’s data.

The NEWDEVS@ feed, also non incremental, allows a full download all the new developments in your area.

See the Property portal list

See the ReSales-Online XML feed list

Incremental feeds (RESALES@, RENTALS@, RESALES-1@, etc.)

Incremental feeds, denoted by tags such as RESALES@, RENTALS@, RESALES-1@, etc., are feeds that contain only the new and updated properties within the network.

During the initial execution of an incremental property feed, all available properties at the time of execution are included in the feed. For instance, the first load of an incremental property feed for Costa del Sol might contain approximately 12,000 properties.

However, such a large quantity of data can create a server timeout. To mitigate this issue, the &N parameter is utilized to download a specified quantity of properties at a time, such as 500, through the following URL: […]/CreateXMLFeedV3.asp?U=RESALES@YOURCOMPANY&P=PASSWORD&N=500.

If 500 properties are downloaded in the first request, the feed must be run an additional 24 times (500 per request) until no properties are returned. If the &N parameter is omitted and there are more than 10,000 properties to download, the output will be identical to using SandBox=TRUE (i.e., 200 properties will be returned and the incremental flag will remain unaffected).

Each property in the feed is sent only once, and any updates to a property are sent only when such updates occur. The feed can be filtered, but it is recommended to start with a clean load when changing filter criteria.
See the complete list of parameters.

Subsequent loads of the incremental feed will contain any new properties added to the system since the feed was last run, along with any existing properties that have been updated since the last execution of the feed. However, any existing properties that have not been altered since the previous feed execution will not be included in the subsequent feed. To ensure that the most current data is always available, the feed should be run daily, as many times as necessary until no properties are returned.
For example, if the feed was completely downloaded yesterday, the feed will only return any property updates that have occurred since the previous feed execution.

Best Practices

Adding N parameter: The N parameter is used to specify the number of properties to download at a time. This helps to prevent server timeout issues when dealing with large quantities of data. Not using the N parameter can lead to potential problems such as server timeout.

See Filter the XML content

Using NPT=true parameter: Using the NPT=true parameter allows you to only get new property types. Old property types are deprecated, but they are still honored for old members’ websites by having this parameter off by default.

See Available parameters for filtering the output

XML format: Ensure that the XML format is properly understood and utilized. The XML format is the structure in which property data is presented in the feed. Incorrect usage or misunderstanding of the XML format can lead to data inconsistencies or errors.

See ReSales-Online XML feed structure