Integrate offline conversions to Google Ads

Hi There,
In my case, I have a questionnaire on the site where people fill out their information. The thing is that the questionnaire on the site is not a HubSpot form but a custom-built one. The sales team then approaches them via the phone or email users provided in the questionnaire. We want to upload these offline conversions back to Google Ads.
I’m new to HubSpot and need help understanding the process. As I understand, I should first link Google and HubSpot accounts and create an enhanced conversion event for the questionnaire form submission. The online documentations are a bit confusing and I’m not sure if I have to have the HubSpot form or what the solution can be. Could anyone please help me with the steps I should take to make this happen?
Any help you can provide would be much appreciated!

Hi @NThakkar07 if you’re not using a HubSpot Form, are you still using a HubSpot landing page? How are the offline conversions being tracked? in HubSpot as logged activities?

Hey @Jnix284
Thank you for your reply!
No, the landing pages are not built in HubSpot, they are built in React.JS.
I just want enhanced conversion tracking for those two landing pages.Please see attached.
I want to set up a custom event so that all sales we make (i.e. offline) in hubspot get inserted into Google Ads.
Is there a way to do so?
If so could you please guide me with the steps/pointers?

Thanks for the additional details @NThakkar07, this is a fairly complex configuration to build out using custom events to track offline conversions for Google Ads and not one that I can easily help with here in the community - maybe @Lucila-Andimol, @elizheleva or @Gilempert can offer further guidance or paid support, or maybe they know an easier way to solve it!

Hey @Jnix284

thanks for reaching out to me for this one.

@NThakkar07 so when you are not working with HubSpot forms

or even if there are actions going on offline,

the first step is to figure out how this action is affecting the contacts in the CRM.

When they complete this form, that this convert this contacts into leads/MQLs or SQLs maybe?

So if there is a change in the lifecycle stage this can be a standard Ads Event (for example Lifecycle stage change to MQL).

Then you go to Google Ads > Goals > Custom goals and import >From CRM existing data source

This will bring you all the options created in HubSpot.

Once it has synced, you can put this custom conversions as goals in your campaigns

and 'll start informing back to Google Ads this conversions.

A bit more info about this here (ignore the HS forms part)

hope this helps

Thank you for the added guidance @Lucila-Andimol, appreciate your help!