Why did my HubSpot won deals suddenly jump?
The HubSpot help pages give 3 common reasons. The first to rule out: If an import file does not give each deal a unique identifier, HubSpot can create a new deal instead of matching an existing one, so the same sale can appear twice.
Is it broken, or just quiet?
A number can fall because fewer people came, or because something stopped counting them. Below are the causes the HubSpot help pages give, and how to check each one yourself.
What causes it?
If an import file does not give each deal a unique identifier, HubSpot can create a new deal instead of matching an existing one, so the same sale can appear twice.
In the HubSpot help:
the import will create duplicate records instead of associating each to the same record.
Format import files, read 2026-11-12.When one import file holds deals alongside other records, rows where the deal details differ can be created as separate deals.
In the HubSpot help:
If a deal property differs between the rows, HubSpot will create two separate deals.
Format import files, read 2026-11-12.The automatic duplicate matching HubSpot describes covers contacts and companies, so repeated deals can need checking by hand.
In the HubSpot help:
HubSpot automatically deduplicates contacts using email addresses, and companies using domain names.
Deduplicate records in HubSpot, read 2026-11-12.
How do I check it myself?
Before importing deals again, check that the file includes each deal's Record ID so HubSpot updates the deals you already have.
In the HubSpot help:
use the Record ID as a unique identifier
Format import files, read 2026-11-12.After an import, look at the deals it created or updated to see whether any won deals are repeats of ones you already had.
In the HubSpot help:
New and updated records on each object's index page.
Import records for multiple objects, read 2026-11-12.If you find repeated deals, compare their Record IDs to tell the original from the copy before you clean them up.
In the HubSpot help:
Record IDs can also be used to manually deduplicate
Deduplicate records in HubSpot, read 2026-11-12.
How would I know the day it starts?
- Feder reads how many deals were won in HubSpot each day and compares each day with your own history.
- It counts deals, so duplicate won deals raise its count too. It tells you when deals won go quiet or move outside their usual range.
Some numbers are too quiet to judge daily, such as a form filled in a few times a week. Until there is enough of your own history to judge a change, Feder says it is still learning and scores nothing, rather than guessing.
See what Feder reads from HubSpot, which feeds Wins. Feder only reads. It never changes anything in HubSpot.
What else goes wrong with these numbers?
- Why does my HubSpot closed won revenue look wrong?HubSpot
- Why are won deals missing from my HubSpot report?HubSpot
- Why did Google Analytics stop collecting data?Google Analytics
- Why aren't my key events showing in Google Analytics?Google Analytics
- Why does Google Analytics show (not set)?Google Analytics
See every question.
Where do these answers come from?
Every cause and check on this page comes from the HubSpot help pages, quoted above with the date we read them. Last reviewed 2026-11-12. We read them again by 2027-11-12. If one changes, this page changes or comes down.