# Configuration

Now that the basic onboarding is complete, let's review all fields in the form and how to use them. The Dataset ID and Ads Account ID were already filled in during the basic onboarding, so we will skip those two.

<figure><img src="/files/zFE5ygWgmutxsZF0p8eH" alt=""><figcaption></figcaption></figure>

### Geo Data

By enabling this option, the following additional geo data are added to the event properties

* GEO\_City
* GEO\_Zip
* GEO\_State
* GEO\_Country

### Skip Phone Number?

**Klaviyo applies strict validation rules for phone numbers to ensure data quality and compliance.**

* Phone numbers must be in **E.164 format** (e.g., `+14155552671`), which includes the **+ sign**, **country code**, and the **full subscriber number**.
* Any formatting characters (spaces, dashes, parentheses) or incomplete numbers will be rejected.
* Klaviyo checks that the number is **valid for the given country code**, not just a string of digits.
* If the number fails validation, the event may be dropped or ignored, which can lead to incomplete data syncing.

Due to this strictness, even though we **normalize and validate phone numbers before sending them to Klaviyo**, we still encounter some errors related to phone numbers.

Enabling this option does not include the phone number in the Klaviyo payload.

{% hint style="warning" %}
Only enable this option if you are seeing high number of errors related to phone number not valid.\
It's normal that small number of events could fail because of the phone number.
{% endhint %}


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