Set Maximum Length for Rich Text or Text Area Custom Field Using Workflow

Setting a maximum character length for a Rich Text and Text Area Custom fields is currently a limitation tracked under Enhancement 66573. As an alternate solution, create a Workflow that will return an error when the preferred character limit on a field is reached.

1. Navigate to Customization > Workflow > Workflows > New
2. Basic Information:
• Name: Enter WF Limit Character
• Record Type: Select Transaction
• Sub Types: Select Sales Order
• Execute As Admin: Enter Checkmark
• Release Status: Select Released
• Initiation: Select Event Based
3. Event Definition:
• On Create: Enter Checkmark
• On View or Update: Enter Checkmark
• Trigger Type: Select -All-
• Contexts: Select User Interface
4. Click Save
5. Click State 1
6. Bottom right corner: Click New Action
7. Click Return User Error
8. Basic Information:
• Trigger On: Select Before User Submit
9. Condition: Select Custom Formula
10. Formula: Enter !isValEmpty(nlapiGetFieldValue('fieldID').toUpperCase()) && nlapiGetFieldValue('fieldID').length>parseInt('5')
    Note: Replace fieldID with the Field ID of the Custom Field.
11. Parameters:
• Text: Enter The maximum characters allowed on this field is only ___
12. Click Save