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How to change Freight Price via rest api?

Forum|Forum|18 hours ago
April 22, 2026
3 replies
21 views

L

+1

larryly
Semi-Pro III

Hi All,

I want to change the Freight Price and Amount on SO303000. I tried few different way but can’t make it.

My most current request.

I send PUT request to endpoint SalesInvoice

with body:

{

"ReferenceNbr": { "value": "INVSP212099" },

"Type": { "value": "Invoice" },

"FreightDetails": [

{ "OrderNbr":{

"value":"SP219039"

},

"OrderType":{

"value":"SP"

},

"ShipmentNbr": {

"value": "SHP297504"

},

"ShipmentType": {

"value": "Shipment"

},

"FreightAmount": {

"value": 0

}

]

}

This will add a new line not update the current data.

Do anyone have been done this before? Thank you.

Best answer by Django

Are you trying to update an existing sales invoice or is this happening when creating a new sales invoice?

nvm - I see that you’re trying to update.

What you likely need to do is to query the sales invoice and see what comes back in the FreightDetails section. I haven’t looked but you’ll likely have an “Id” value that’s returned. You’ll send that back in your PUT request to update the value of the field on that particular record.

Your Json, above, isn’t directing ACM to a specific line so it adds a new record.

D

+8

Django
Captain II
Answer
Forum|Forum|17 hours ago
April 22, 2026

Are you trying to update an existing sales invoice or is this happening when creating a new sales invoice?

nvm - I see that you’re trying to update.

What you likely need to do is to query the sales invoice and see what comes back in the FreightDetails section. I haven’t looked but you’ll likely have an “Id” value that’s returned. You’ll send that back in your PUT request to update the value of the field on that particular record.

Your Json, above, isn’t directing ACM to a specific line so it adds a new record.