https://community.appian.com/discussions/f/rules/18595/couldnt-compare-2-list-of-dictionariesHi All, I have a requirement where i do have 2 list of dictionaries(X,Y). So im iterating the first one X and comparing whether its value is present in the Second one Y,if not present then i should get the value.Eventhough ,the value is present in Yen-USTelligent Community 12https://community.appian.com/thread/73272?ContentTypeID=1Sun, 12 Apr 2020 12:57:38 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:74453ad6-7e1e-455c-ad2d-e55802553e0farunramanathtm<p>Use flatten for your&nbsp;input dictinoaries ...<br />I have tested .. This works fine with the below code</p> <p>a!forEach(<br /> items: a!flatten(local!x),<br /> expression: {<br /> if(contains(a!flatten(local!y),fv!item),{},{fv!item})<br /> }<br /> )</p><div style="clear:both;"></div>