Full fill custom properties via API

[RudakovaS]

Hi! I really need your help.
I'm setting up HubSpot for a SaaS company that runs on a subscription model.
I want to add to custom properties information about:
- subscription purchase date (each)
- subscription activation date
- subscription expiration date
- subscription cancel date
- date of unsuccessful payment
- registration date
- next payment date
- subscription type
- number of remaining tokens
- GMV
- number of subscription purchases

All data is stored right now on my database. How can I add / update this data in HubSpot via API?
Or how do I always keep up to date information on custom properties?

[Jaycee_Lewis]

Thanks for the great reply @evaldas 🙌 — Jaycee

[evaldas · Accepted solution]

Hi @RudakovaS 

In order to create custom properties, you can follow this guide on setting up properties. There is an option to create properties via API as well.

To pass data from your database into the HubSpot portal, you can use Webhooks with workflows. 

To set up API keys in HubSpot, you will need to create a Private App.  

You can also use the CRM API for Contacts to update contact records. 

Hope this helps!