Flow Designer - How to perform Error Evaluation on empty String field

bvlo
Tera Expert

I am looking to configure Error Evaluation when the following occurs:

bvlo_0-1689869626402.png

None of the conditions found here seem to allow me to accomplish this:

 

bvlo_2-1689869890955.png

I am looking for something similar to the "Is Blank?" transform function found here (only available on Input Pills) Is there any way to accomplish this? I am specifically wondering how to generate an error when a specific output variable is empty.

Thank you in advance


1 ACCEPTED SOLUTION

Hemanth M1
Giga Sage
Giga Sage

HI @bvlo 

 

Try with one space like below : I just put one space and seems to be working fine

HemanthM1_0-1689876399718.png

 

action input is empty:

HemanthM1_1-1689876481357.png

 

Output:

 

error.PNG

 

 

 

 

 

 

 

 

 

Accept and hit Helpful if it helps.

Thank you,
Hemanth
Certified Technical Architect (CTA), ServiceNow MVP 2024, 2025

View solution in original post

3 REPLIES 3

Pratiksha_45
Kilo Sage

Hello @bvlo ,

Please set Don't Treate as Error checkbox false in that action of that flow .

Pratiksha_45_0-1689875524167.png

 

Please mark helpful if my answer is helpful to you.

Thanks!

This kinda goes against what I am trying to accomplish - I do want this treated as an error. Thank you for the reply though.

Hemanth M1
Giga Sage
Giga Sage

HI @bvlo 

 

Try with one space like below : I just put one space and seems to be working fine

HemanthM1_0-1689876399718.png

 

action input is empty:

HemanthM1_1-1689876481357.png

 

Output:

 

error.PNG

 

 

 

 

 

 

 

 

 

Accept and hit Helpful if it helps.

Thank you,
Hemanth
Certified Technical Architect (CTA), ServiceNow MVP 2024, 2025