How do you create Opportunity Items & Quote Items via Rest API

[KWCJR]

Hey everyone,

Please somebody help before I go postal on this...

I have been wracking my brain on this for about two weeks now...Mabey someone here can shed some light for me because I am already bald enough & there is no documentation on actual /Endpoints that I can find anywhere other than the Generic Syntax structures ~

My Setup:
* Vultr Server Running Docker on Ubuntu 25.04 x64
* EspoCRM v9.1.5 Running in Docker Container
* Advanced pack v3.9.0 Installed & Active
* Sales Pack v2.6.13 Installed & Active

Workflow ( regardless if /api/v1/Opportunity OR /api/v1/Quote ( I have tried both - same outcome )
* Create a POST request to /Opportunity OR /Quotethat includes the ItemList[] like so ( fig A )
* the record gets created AND returns a 200 OK but silently ignores the Items. ( fig B & C )

( fig A )


( fig B )


( fig C )

The Espo Logs state that the unitPrice field is missing but it's clearly not...


And when trying to POST to the endpoint /OpportunityItem it forbids me & PUT & PATCH are not allowed...

HOWEVER a GET request to /OpportunityItem will return a full list of Items that are attached to many Opps....

What exactly am I missing here?!

[lazovic]

Hi KWCJR,

Please try to add the unitPriceCurrency field to every opportunity item and use the itemList field instead of the items one. Example:

{
  "name": "Test Opportunity",
  "amount": 300,
  "closeDate": "2025-06-19",
  "itemList": [
    {
      "name": "Test Item 1",
      "unitPrice": 100,
      "unitPriceCurrency": "USD"
    },
    {
      "name": "Test Item 2",
      "unitPrice": 200,
      "unitPriceCurrency": "USD"
    }
    ]
}

[KWCJR]

Hey lazovic,

Not only did you getting back to me in less than 30 mins for a new community member, but this worked perfectly!

Here is my output for the thread just in case anyone else comes across this caveat.

Thank you so much!