An error when adding lines to SalesOrder: "Object reference not set to an instance of an object"

[Anonymous]

PUT request to https://integration.visma.net/API/controller/api/v1/salesorder gives error:

HTTP status 500

{message:"VismaId: c8db4134-cf81-494a-974d-24add4f1e38e. Object reference not set to an instance of an object."}

What's that? Why's that? What can we do about it?

Thanks in advance!

Example:

IPP-Company-Id: 2649567

Request:

PUT https://integration.visma.net/API/controller/api/v1/salesorder/601516

PUT https://integration.visma.net/API/controller/api/v1/salesorder/601516
{
    "lines": [
        {
            "operation": "Insert",
            "inventoryId": {
                "value": "Wallmount"
            },
            "quantity": {
                "value": 1
            },
            "unitPrice": {
                "value": 800
            },
            "discountAmount": {
                "value": 0
            },
            "lineNbr": {
                "value": "2"
            }
        }
    ],
    "orderType": {
        "value": "SO"
    }
}

[Yıldırım]

Hello, 

Could you make sure that the sent "InventoryID" exists in the Financials company ? Please also check the Sales Order's (601516 ) Type in the UI, or you can try a GET request with /salesorder/{orderNbr}

[Anonymous]

Yup, that SalesOrder exists - we are able to retrieve it. (had done that prior to trying to add lines)

Yup, this InventoryId exists. That SalesOrder contains existing lines with this InventoryId.

[Anonymous]

And yeah - it is retrievable via salesorder endpoint.

[Yıldırım]

Can you try to add then save the same Sales Order Line manually on the UI and see if Financials ERP prompts any error message/s ?  Please also send us a print screen highlighting the lines( If it contains sensitive data, you can send this to developer@visma.com )

[Anonymous]

We do not have access to the UI itself - we are providing an integration solution only. So, we are now negotiating that "experiment" with the customer.

Meanwhile, here are some details that might be valuable:

Looks like this SalesOrder has been shipped already. Is it allowed or forbidden to add lines to shipped SalesOrders? (where can we get info on other such rules?)

[Anonymous]

(I mean, we do not have access to the UI of a customer's account)

[Yıldırım · Accepted solution]

API adheres to rules of the Financials ERP so your best guide in having a good grasp of transactions and its requirements is UI.   

- There are training materials for both ERP & API available at Visma Academy
-Visma.net Financials ERP Online Documentation : 
https://knowledge-and-support-center.visma.net/WebClient/?integrationId=368910de-30a3-489b-b932-e6a3...

Once Sales Order has been shipped, it's not allowed to modify the document.

API should return the following error