Null value in smtp

why does it throw me this error?
what should i change?

Send SMTP Mail Message: The value cannot be null.
Parameter name: fileName

Look in Attachments:

image

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the input you have given something is null just debug and check which is null

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Hi @Ana_Patricia_Garcia,

Your variables may be empty. Make sure these variables are full prior to SMTP activity.

Regards,
MY

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Hello @Ana_Patricia_Garcia The Variable fileName has an empty value. Make sure it has the associated value. You can assign value to fileName using Assign activity

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