https://community.appian.com/discussions/f/best-practices/26248/datasubsetHI , I am trying to update a process variable of type datasubset, I am using the following code to update a particular index value, As the data is an array and at each index again is a CDT. And I am trying to store it in the PV(type Datasubset) but Ien-USTelligent Community 12https://community.appian.com/thread/102988?ContentTypeID=1Mon, 17 Oct 2022 06:38:44 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:b7aaf785-a450-4985-bb57-d5619cc8118dsivasuryap0002<p>Thanks&nbsp;,<br />Its working</p><div style="clear:both;"></div>https://community.appian.com/thread/102987?ContentTypeID=1Mon, 17 Oct 2022 06:25:19 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:38d564ff-e0f4-4299-9f49-d145e1a23372Stefan Helzle<p>In this case, I recommend to use a foreach loop to iterate on the items. If the item matches your condition, update it, else, return the unmodified item.</p><div style="clear:both;"></div>https://community.appian.com/thread/102983?ContentTypeID=1Mon, 17 Oct 2022 06:13:19 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d1fec6ef-b7e7-4859-b92f-73b1d804abf5sivasuryap0002<p>Then How Can I pass the index of &quot;SentOn&quot; ?</p><div style="clear:both;"></div>https://community.appian.com/thread/102981?ContentTypeID=1Mon, 17 Oct 2022 05:59:17 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:55dbcddb-12ec-4bdb-a917-de9277eb2e05Harshit Bumb (Appyzie)<p>Your index function at line 3 must be returning multiple indexes. Anyway, the index function is not providing you a number or a property rather it will provide you the value of &quot;sentOn&quot; which is not the correct index that can be passed in a!update()</p><div style="clear:both;"></div>