In version 8, you will be able to add more customer details in the POS view itself.
Another reason of not being able to select newly added Customer is that new Customer must be in local database only, because you are using it offline. Once all the offline invoices are synced and master are sync into POS, then you will be able to select that Customer in the new invoices.
I follow your steps and I succeed
really thanks for your answering
but I have a question
when I edit my customer data in pos it means I am online , is that right ?
so why should I sync the offline invoice?
when I edit my customer data in pos it means I am online , is that right ?
Not necessary. You can create and edit POS invoices and add customers in the offline mode as well. If you are online while creating POS invoices, to sync master data, check “Sync Masters” option in the POS > Menu