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# How can I include a dynamic date in the file name or subject line of an email sent from Parabola?

> Occasionally, files sent from Parabola need to include the date and time they were created. This is often for use cases where Parabola flows are sending data continuously, and other systems where people need a way to keep track of what file was sent when.

## **How it works**

Use the **Email a file attachment** step to send files from Parabola flows as attachments in emails.

When configuring that step, any of the text fields will accept merge tags. Use merge tags to merge in values from your data into the email settings by wrapping the name of the column in \{curly braces}.

To include a dynamic date in the subject line or attached file name, first use the Add date and time step to create a column that shows the current date and time. Then, in the **Email a file attachment** step, merge that column into the subject line or the attached file name field. If your date and time column is named "Current date and time", then you would use \{Current date and time} as your merge tag in the text field.