This morning, I found out the hard way that Knack has changed how the PUT API call operates in tables. If you don’t have the Inline Edit set as enabled, it wil fail with error code 400 (Bad Request). So I had to rush all over my app to find all the tables that were affected. Since I don’t want th…

Hi Norm - thank you for posting here and for reaching out directly to our support team for help when you noticed this! Knack is committed to the security of our customer’s data. As such, we’ve recently made some changes to our API to align with our Dev Docs and improve security. We’re sorry to hea…

[image] NormandDefayette_CortexRD: Knack has changed how the PUT API call operates in tables Did Knack also recently change how the PUT API call operates in forms? I am getting a 400 (Bad Request) as a response to a PUT call to a form. The POST call works, but the PUT fails (with the same hea…

Hi Chia, It is possible, but I can’t say for sure. I will have to try it. Note that it may be due to your form’s action. Does it add a new record or does it modify an existing one? Remember that POST is to add and PUT is to modify. Maybe until recently, PUT could add a new record even though i…

@Chia - It’s hard to tell from what you describe here if this is related to that change. Would you please email support@knack.com or message our support team from your Builder? It would help to learn more about the issue you are facing within context of your specific app, in order to assist. Thanks! …

Hi to all. I just want to take a moment to say a big Thank You to Knack’s development and documentation teams for listening and considering my special request. In fact, when I started using their API, I discovered by pure coincidence that it was possible to perform PUT operations in table and sear…

Important! API calls security update has major impact - please read this - #3 by Jessie - Knacksters' Idea Lab

Topic		Replies	Views	Activity
Having trouble doing a Put request using Jquery in Knack Ask Developers	3	771	March 17, 2023
View-based API call returns Invalid request, but no indication of why Get Answers	6	102	July 22, 2025
AJAX PUT invalid request API & Custom Code	1	110	September 3, 2024
Invalid request error inline editing Get Answers	2	603	September 8, 2021
Update after Form Submit API & Custom Code	2	416	August 8, 2019