Cant find function trim in object error in flow designer?

[Community Alums]

How to fix this error

its working fine in 27to28 step, But 18th showing error (28th was different condition flow)

both are same 

[venkatrajesh]

Please do nor use the Group name directly i.e instead of giving  reference  value give the string value(name) by expanding  the reference variable in the flow

[venkatrajesh]

i have faced the same issue.its worked for me