topic Check set collection action… in Product Forum https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77413#M29641 Check set collection action input values, in your case enter field name like ""a"". it helped. Use another method with calculation stage, enter data item in expression and collection field name in result. Fri, 04 Jan 2019 15:25:00 GMT Ravendrababuchalla 2019-01-04T15:25:00Z How to add data to collection Row https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77410#M29638 Using the utility - collection manipulation object I am trying to add values to a row in a collection but I have been unsuccessful. I have a blank collection and add a row. I have a data item called one with a value of "one" and another data item two with a value of "two".   I am trying to add one to column aa.a and two to column aa.b through the set collection field in an action but have not been able to do it. any ideas?   Thu, 27 Sep 2018 09:06:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77410#M29638 RaulSamayoa 2018-09-27T09:06:00Z Just use a calculation with … https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77411#M29639 Just use a calculation with [one] as the expression and aa.a as the Store In destination. Thu, 27 Sep 2018 16:16:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77411#M29639 John__Carter 2018-09-27T16:16:00Z Add an empty row before you… https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77412#M29640 Add an empty row before you start setting the values of fields. It helped in my case. Thu, 08 Nov 2018 01:02:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77412#M29640 Shruti_AnilNark 2018-11-08T01:02:00Z Check set collection action… https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77413#M29641 Check set collection action input values, in your case enter field name like ""a"". it helped. Use another method with calculation stage, enter data item in expression and collection field name in result. Fri, 04 Jan 2019 15:25:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-add-data-to-collection-Row/m-p/77413#M29641 Ravendrababuchalla 2019-01-04T15:25:00Z