where is customer and supplier credit account
What do you mean “where it is”. It’s in chart of accounts if you enable Customers or Suppliers tabs.
I want to receive complete amount from supplier and customer account how can i get it not form each invoice.
Still not sure what you mean. Are you asking how to record a payment from customer?
I need to pay amount to my supplier , how can i pay them , so manager can allocate . i dont want to pay through each invoice
If you are paying them from a bank account, read: Manager Cloud
It will show you how to caregorize such a payment against Supplier credits account.