https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48328#M3871 Hi , Question :How to check if the  value exists in data item (number data type) or not? Please note:- 1)[Data item ] "" - is working incase if the data item is of text data type. 2) when the data item is number data type it throwing an internal exception "cannot perform when the left hand value is empty" Internal : Cannot perform operation when the left-hand value is empty   Any suggestion? Regards, Dilip K   Tue, 04 Dec 2018 19:03:00 GMT DilipK 2018-12-04T19:03:00Z https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48328#M3871 Hi , Question :How to check if the  value exists in data item (number data type) or not? Please note:- 1)[Data item ] "" - is working incase if the data item is of text data type. 2) when the data item is number data type it throwing an internal exception "cannot perform when the left hand value is empty" Internal : Cannot perform operation when the left-hand value is empty   Any suggestion? Regards, Dilip K   Tue, 04 Dec 2018 19:03:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48328#M3871 DilipK 2018-12-04T19:03:00Z https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48329#M3872 Hi, In my opinion, best practice is to initialize all your number data items (e.g.- zero) and then check that [Number item]>0. Would that work for your situation? Respectfully, Dave Tue, 04 Dec 2018 23:15:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48329#M3872 david.l.morris 2018-12-04T23:15:00Z https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48330#M3873 There is an in-built logic function IsNumber() in Blue Prism. It returns true if the input is a number. Wed, 12 Dec 2018 19:19:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48330#M3873 IrynaMilyanenka 2018-12-12T19:19:00Z https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48331#M3874 Hahahahaha! Good point, Irina! I'm *facepalming* over here. Can't believe I forgot about the Is functions. Thu, 13 Dec 2018 07:55:00 GMT https://community.blueprism.com/t5/Product-Forum/How-to-check-the-value-exists-in-data-item-which-is-of-number/m-p/48331#M3874 david.l.morris 2018-12-13T07:55:00Z