Required information

$[$The following information applies to the questions displayed below.$]$

Nicole's Getaway Spa $($NGS$)$ continues to grow and develop. Nicole is now evaluating a computerized accounting system and needs your help in understanding how source documents inform accounting processes. She also needs some help reconciling NGS$\text{'}$s bank account.

Required:

For each source information shown below, prepare the appropriate journal entry. $($If no entry is required for a transaction$/$event$,$ select $"$No Journal Entry Required" in the first account field.$)$

a$.$ Purchase order dated October $13$ for massage chairs costing $$840$ and oil supplies costing $$315.$

b$.$ Remittance advice from customer for $$108,$ received October $17.$

c$.$ Receiving report indicating October $22$ receipt of October $13$ order. Also received supplier invoice totaling $$1,155.$

d$.$ NGS check for payment in full of October $13$ order.