Importing Orders - Logistics

Hi Team,

I am working on the logistics application with bulk import of orders. I am importing orders using an excel file. From the frontend/UI of logistics application, I knew that there is a limit of 19 columns that can be created. I am trying to import orders using the following endpoint: https://sdk.wialon.com/wiki/en/sidebar/ … er/update.
I can see the parameters such as n,p,a,e and others which allow to add columns for name, phone, address, email etc. I want to add more than 20 columns using this import option. I found the parameter "cf" where I can add order custom fields. If I pass extra columns I needed as key-value pair using this parameter, will I be able to add more than 19 columns in the frontend. If this is possible and if I pass more than 20 columns, will it get limited in frontend to 19. If this is not possible, how can I add more than 19 columns in the logistics application by having more than 19 columns in the excel file. Could you please help me with this?

Regards,
Jisna