Expression String Data Manipulation

[lebravebiyo]

Does anybody know what this error message means?

It pops up once I try to run a string data manipulation automation.

Thank you.

[Yoichi]

Hi,

Can you show us your expression of the Assign activity (Get author)?
or
Can you share your workflow?

Regards,

[pattyricarte (Patty Boy)]

Hi @lebravebiyo

Can you try add more details in your inquiry.As i can see you are splitting message that doesnt have a value on it.

cheers

Happy learning

[lebravebiyo]

[lebravebiyo]

This is what you were asking for correct?

[Yoichi]

Hi,

Thank you for sharing your expression.

If message does not contain “author”, LastIndexOf method returns -1. Then Substring method does not accept negative value as argument. As a result “StartIndex cannot be less than zero” was occured.

Can you check if your message contains “author”?
If there is a possibility it does not contains it, perhaps you should handle for this case.

Regards,

[lebravebiyo]

Where do I see if message contents author? In the sequence annotation?

[lebravebiyo]

It says “author X” in the sequence annotation.

That’s the only info the video demo provided.