Hi we have a rolling payment policy were customer only pays for items which they have sold. so how do i invoice this to customers???

 

eg.

1st month we supply customers with 10 boxes - we invoice customer but customer does not pay any money

2nd month the customer only pays for 5 boxes that they sold and the remaining 5 still on the shelf. so we stock up further 5 to the original 10 boxes (sometime even more).

 

how can i intergrade this scenario into Zoho invoice????/ so that we dont have reaccuring invoices every month or can we inplant into CRM???

 

regards