Dear Sir,

I am Anoop Jain

I have a tiles and hardware shop. In F.Y 2019-20 Many customers pay their amount from Google pay and others payments app for purchase of goods and they do not need of any invoices.

So we do not Generate any invoices of received amount from customers. 

So what should I consider this amount for F.Y 2019-20. 
And how to enter in the books of accounts

Thanks