These are the following effects of using backslash:
1. Adding a backslash '\' between two words combines the words together.
Sales/Purchase Description on item record: NetSuite\Support
Description appearing on sales/purchase transaction: NetSuiteSupport
2. Adding a number immediately after a backlash will display an ASCII type or blank character. However, using Chrome Browser, dot replaces \ once you click the Add button.
Sales/Purchase Description on item record: Item \1
Description appearing on sales/purchase transaction: Item (random ASCII character)
After clicking on Add: Item .
If you would like to display the slash character in the item description, use the forward slash '/' instead.