we need to build multivender b2b agri input android app -- 4

i want to be make b2b android app like udaan
users they need to purchase b2b agri products like seeds, agrochemical
for reference: https://play.google.com/store/search?q=agrim&c=apps
https://play.google.com/store/search?q=faarms&c=apps
https://play.google.com/store/search?q=agri10x&c=apps

ek aur reference ke liye bhejta hu. aur usme user onboarding kaisa hoa wo bhi hai
https://play.google.com/store/apps/details?id=com.arzooonative
(https://www.youtube.com/watch?v=cdBybfDJkWQ)

mujhe zoho crm, inventory, books(invoice), zoho live chat, webengage analytics, multilanguage, customerglu sdk inmujhe zoho crm, inventory, books(invoice), zoho live chat, webengage analytics, multilanguage sdk, customerglu sdk integration. all platform SDK available you just need to integrate

jo b2b sb inventory,quote, invoice sb zoho se managed hoga