Connecting to Bing Ads

Before setting up the connector, verify your Bing Ads account already has campaign data on it so Polar has something to pull in.

Bing (Microsoft Advertising) only allows Polar to connect using a personal Microsoft account — not a work or Microsoft 365 account. This is a Microsoft limitation, not Polar's, and it's the single most common source of Bing connection issues, so it's worth setting up correctly the first time:

Create a personal/private Microsoft account using a personal email address.
Grant that personal email Admin access to the Bing Ads account.
Add that same personal email to Polar as an Admin user.
Log into Polar using the personal email.
Go to your Connectors page, find Bing Ads, and click Connect to Polar Analytics.

Don't have a personal email to use? You can convert a work email into a Microsoft identity without affecting your Google Workspace or existing Microsoft 365 setup:

Go to signup.live.com
Enter your company email and set a password
This creates a Microsoft authentication layer on top of your existing email, which Bing accepts as a personal account

Connecting more than one Bing Ads account? If the second account uses a different login than the first, adding it from your current Polar login usually won't work — Polar ties one email to one Bing connection per user. Instead, invite a new user to Polar using the second account's email, give that user Admin permissions, and connect from there.

Once connected, data will be available at the next refresh, and you'll find it on the Acquisition page, Key Indicators, and in your Custom Reports.

Troubleshooting Common Connection Errors

In Polar, integrating Bing Ads data can present a few recurring challenges — most stemming from Microsoft's own account and consent restrictions rather than anything Polar controls. Below are the main causes we see and how to resolve them.

Why does connecting send me to a Microsoft login that rejects my email?

If clicking Connect under Bing Ads sends you to a Microsoft live.com login page, and entering your email returns an error saying the account doesn't exist, you're using a work or Microsoft 365 account. Bing only accepts personal Microsoft accounts for this connection.

Steps to resolve:

Follow the Connecting to Bing Ads steps above using a personal Microsoft account.
If the email you signed into Polar with doesn't match the email set up in Bing, that mismatch is the issue: invite the email used in Bing to your Polar account, give it an Admin role in Polar, then sign into Polar with that email before reconnecting.

My connector was working, then it broke — reconnecting isn't fixing it

This is the most common Bing issue we see after initial setup, and usually isn't the personal-account issue at all — it's a stale session or revoked permission.

Steps to resolve:

Clear your browser's cache, or try connecting from a different browser or an incognito/private window.
From the Connectors / Integrations page, use Connect account at the bottom rather than just re-authorizing in place.
Confirm the account still has Admin access in Bing Ads and is still added as an Admin in Polar — Bing sometimes revokes access silently if permissions changed on the Microsoft side.