Update SharePoint list item by column button click

Question

I created a SharePoint list with a column having button as described here.

Now, I want to update another list item by clicking on this button.

The list look as above:

So, when I click on the "Start Workflow" button, it must add value in the "Updating" field.

Answer 1

For your requirement, you need to call a JSOM function and run the workflow on button click for corresponding list item.

Follow below steps:

1. Create a SP designer workflow on this list and in its settings add trigger to manually run the workflow.
2. Add update list item action in your workflow which will update the "Updating" field.
3. Then add other actions to as per your requirements.
4. In JSLink code you used to create a button, add a function to run the workflow using JSOM.
5. On click of "Start Workflow" button, run this newly create function.

Check below references to create a JSOM function to run workflow.

References:

1. Start SharePoint Designer Workflow 2013 using JavaScript

2. Run SharePoint Workflow on Button Click in List Views using JSLink and JSOM

Alternate Solution:

You can create custom action button in your SharePoint list and run the workflow for particular list item on click of the custom action.

Source: Create A SharePoint Workflow Button

Update from Comments:

If you don't want to run workflow on button and update the same item then you can use JSOM or SharePoint REST API to update the corresponding list item.

Check below references for updating list item:

1. CRUD Operations On A SharePoint List Using REST API
2. Working with lists and list items with REST
3. How to: Create, Update, and Delete List Items Using JavaScript
4. Update A List Item In SharePoint Using JSOM