ERROR IN IF ISNULL FORMULA

[Alessandro_Bortolatto]

Hi all, 

I am trying to replace [Null] fields in column "dati 1" with values in column "dati 2" with the if isnull formula. However Designer release the following error: "The field "" is missing. Compare the tool configuration with the input stream". 

Anyone can help me? 

Thank you in advance. 

Alessandro 

[atcodedog05 · Accepted solution]

Hi @Alessandro_Bortolatto 

Please set an output column name here for the formula.

Resource on formula tool: https://community.alteryx.com/t5/Interactive-Lessons/Diving-Into-Expressions/ta-p/98817 

Hope this helps : )

[Alessandro_Bortolatto]

Thank you very much

[atcodedog05]

Happy to help : ) @Alessandro_Bortolatto 

Cheers and have a nice day!