GE2017: how are political parties targeting you on Facebook?

Help us understand how Facebook is targeting people during the general election campaign. Photograph: Loic Venance/AFP/Getty Images

We now know targeted Facebook advertising played a big role in 2015’s general election.

The Conservatives spent £1.2m on Facebook advertising in 2015 – and it paid off with a majority, albeit a small one. It is understood both them and Labour plan on spending similar amounts on Facebook advertising.

What we want to know is how people in different constituencies across the UK are being targeted by political parties and lobbying groups on Facebook during the 2017 general election – and we need your help to do it.

An example of a sponsored post promoting a tactical voting initiative against hard Brexit. Photograph: Facebook

When you spot a targeted ad, screenshot the ad and send it to us via the form below or via email. Facebook also gives you information about why you were targeted – if you’re able to, we’d like to see a screenshot of that, too.

‘Why am I seeing this?’: what you see when you click the arrow on the top right of a sponsored Facebook post or advert. Photograph: Facebook

To find out why you were targeted, click on the arrow facing down on the right side of the post and click “Why am I seeing this?”.

An example of what you’ll see when you click ‘Why am I seeing this?’ Photograph: Facebook

Please send screenshots to elena.cresci@theguardian.com with the subject line: “GE2017 Facebook ads”. Alternatively, you can upload them in the following form: