Hello, [ERROR: Can’t determine which item to use]

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1

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Hello,

I have this ERROR, and i can’t know the solution, i have a Spreadsheet node that read the excel file with the emails that i want to send them, but sometimes work clearly and done, and sometimes stop with this error and i don’t know why,

if anyone know the solution Please help me

4

I solved it—I used a Switch node that the same output make two different department names because I set the condition to “contains” to the department.