如何使用初始化后填充的数据初始化Facebook Pixel? [英] How to initialize Facebook Pixel with data that will be populated after the initialization?
问题描述
我有一个单页的广告系列网站,应该收集 PageView
和 LEAD
Facebook定位的事件数据高级匹配。
I have a one-pager campaign site which should collect PageView
and LEAD
event data for Facebook targeting with "advanced matching".
对于 PageView
,我需要在页面加载时初始化Pixel。对于高级匹配,我需要为初始化脚本提供用户数据 - 但是,在用户提交数据后,我只有用户数据可用,即 LEAD
事件应该是已发送。
For PageView
, I need to initialize the Pixel on page load. For advanced matching, I need to provide user data for initialization script — however, I only have user data available after user has submitted the data, which is when the LEAD
event should be sent.
是否可以为初始化脚本提供指向发送 LEAD $时使用的javascript变量的指针 c $ c>活动?帮助页面提示,但所有示例都有例如电子邮件参数以纯文本或sha256哈希的形式提供;不是JS变量,也不是文本指针。
Is it possible to provide the initialization script with a "pointer" to a javascript variable that is used when sending the LEAD
event? Help page hints at this, but all the examples have e.g. email parameter provided as plain text or sha256 hash; not as JS variable nor as a textual pointer to one.
要启用此功能,请修改默认的FB像素代码,将数据
传递到像素初始化调用中。
To enable this feature, modify the default FB pixel code to pass data into the pixel init call.
fbq('init', '<FB_PIXEL_ID>', {
em: '{{_email_}}',
// Data will be hashed automatically via a dedicated function in FB pixel
ph: '{{_phone_number_}}',
fn: '{{_first_name_}}'
....
})
在上面的示例中,您需要将电子邮件,phone_number,
first_name替换为您网站上变量的名称
捕获这些数据。
In the example above, you will need to replace email, phone_number, first_name with the names of the variables on your website that capture this data.
假设我有 user_email
变量范围为 fbq-init
:
var user_email = '';
稍后,在提交表单后,此变量将填充为
Later, after the form is submitted, this variable will be populated like
user_email = "john@example.com";
我应该如何在 fbq
中引用变量? ? (1)喜欢这个?
How should I reference the variable in fbq
? (1) Like this?
fbq('init', 123456, { em: '{{_user_email_}}' });
(2)或者像这样?
fbq('init', 123456, { em: 'user_email' });
(3)或者我应该只提供变量:
fbq('init', 123456, { em: user_email }); // nb: user_email === false when this is run
(4)或者我应该初始化没有任何匹配数据的像素,以后再丰富它? (如何?)
(4) Or should I initialize the pixel without any matching data and later enrich it? (How?)
一位声誉良好的广告代理商向我发送了提交变量名称的说明,如我的示例2所示,但帮助页面提示为1但未实际提供任何现实世界的例子。
A reputable ad agency sent me with instructions to submit the name of the variable as in my example 2, but the help page hints at 1 without actually providing any real world examples.
我尝试了所有选项1-3,似乎变量不会重新获得初始化后,在后续的 fbq('track',...);
调用中进行评估。如果 user_email
以空白开头,则所有事件都不会包含散列用户数据。
I tried all the options 1–3, and it seems variables won't get re-evaluated in subsequent fbq('track', …);
calls after the initialization. If user_email
is blank to start with, none of the events will include hashed user data.
此外即使我从有效的电子邮件开始 user_email =john@example.com;
(也尝试过真正的域而不是example.com)只有方法3可以工作 - 但是,正如预期的那样,这不是动态的,即。如果 user_email
更改哈希值不会。
Moreover even if I start with a valid email user_email = "john@example.com";
(also tried real domains instead of example.com) only method 3 will work — but, as expected, this is not dynamic, ie. if user_email
changes the hashes won't.
就好像没有字符串变量替换开始使用。
It is as if there is no string-variable replacement to begin with.
更合适的问题是:如何在像素初始化后提交高级匹配的用户数据?而不是尝试使初始化延迟/动态。
Would the more proper question be: how do I submit user data for advanced matching after the pixel initialization? Instead of trying to make the initialization lazy/dynamic.
推荐答案
作为解决方法它是可以通过javascript加载像素(图片)来生成带有电子邮件用户数据的 Lead
事件:
As a workaround it is possible to generate a Lead
event with email user data by loading the pixel (image) via javascript:
// here the user email is unknown, so PageView is generated without email
fbq('init', 123456, {});
fbq('track', 'PageView');
// Later the form is submitted via ajax, so the user email is known
$.ajax(…).done(function(data) {
// I decided to sha256 hash the email address in the backend and return it for the javascript handler
var pixel = document.createElement('img');
pixel.src = 'https://www.facebook.com/tr/?id=123456&ev=Lead&ud[em]=' + data;
document.body.appendChild(pixel);
// confirmed by the Pixel helper Chrome extension, this does generate a valid tracking event
// (ironically, we're loading the noscript version via javascript)
});
当然,纯粹的 fbq
版本会更可取。此外,我还没有意识到可能的缺点,如果有的话。
Of course, a pure fbq
version would be more desirable. Also, I'm yet unaware of possible drawbacks, should there be any.
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