What server-side does for Microsoft Ads
UET + Offline API in parallel
The UET tag catches on-site events, server-side fills in the conversions the browser blocked, plus offline sales (phone, store) via Offline Conversion Import. Microsoft deduplicates by transaction_id.
msclkid click ID restore
Microsoft attributes by the msclkid from the ad click. Our Click ID Restorer stores it in a first-party cookie and a server-side cache (90 days), so even late conversions arrive with correct attribution.
Conversions beyond the reach of ad-blockers
The server-to-server call goes from your server — ad-blockers, ITP, and missing consent can't reach it. You send offline conversions with their real value and currency.
No per-conversion fee
Microsoft Ads is one of 18 supported platforms in the plan from CZK 349. No fees per conversion.
Three steps and the data flows.
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1
Sign up + set up the container
14 days free, the setup wizard generates the GTM container. Import it and you're done.
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2
Add your UET Tag ID + API access
In Microsoft Advertising → Tools → UET tag you get the Tag ID. For offline import you authorize the API. In the DataNostro dashboard you enter the UET Tag ID and Customer ID.
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3
Verify in the Microsoft Ads UI
Microsoft Advertising → Conversions shows incoming server-side and offline conversions and their attribution to msclkid.
What's in every plan
Online and offline conversions, no cap.
Online and offline conversions in one.
First-party cookie 90 days + cache.
Hashed PII (SHA-256).
QA conversions before going live.
Refund / value update.
We send conversion value for tROAS.
No per-pixel charges. Unlimited platforms.
Microsoft Ads (Bing) + 17 more platforms (Sklik, Heureka, GA4, Google Ads, TikTok…) in one STARTER plan from CZK 349/month. No per-pixel surcharges.
Frequently asked questions
Does this replace the UET tag? +
No — we keep the UET tag running for on-site events; server-side and Offline Import fill in the rest. Microsoft deduplicates by transaction_id.
What is msclkid? +
msclkid is the Microsoft Click ID from the ad click. We store it on arrival in a first-party cookie and attach it to the conversion — so offline and late conversions also get correct attribution.
Can you import offline conversions? +
Yes — via Offline Conversion Import you send conversions from your CRM or call center with the msclkid and value. Ideal for lead-gen and phone orders.
Does it work for Bing Shopping too? +
Yes, we also send e-commerce conversions with value and currency for Microsoft Shopping campaigns and value-based bidding.
Bing conversions don't end in the browser
Some conversions close offline or beyond the reach of the UET tag. Server-side via DataNostro sends them to Microsoft Ads with correct attribution. Five-minute setup, 14-day free trial.