Hi Damon,
please check the IS Built-In-Services Reference for services under pub.date-Folder.
After creating the date with one of these services you can map it to the writeFile service by using “Perform pipeline variable substituion” on the map.
The Input should then look like “filename_%date%.txt” where date is the output from the previous date service.
Regards,
Holger
#Integration-Server-and-ESB#webMethods#Flow-and-Java-services