Hello Swipe! I Need help with Error Message: You can't add cess as custom column. This name is reserved for system. - /v2/custom_fields/item

[Geetha_N]

From the above error message, I can understand that you’re trying to add a cess column in the custom field section.

Please note that the cess column is already reserved in the system, please change the field name and try to add custom field.