I have already posted sale invoices.I found under audit log I couldn't find under related customer.

Hello there, @rashida.

Let's filter the transaction tab to view the invoices. Here's how:

1. Go to the Sales menu, then select Customers.
2. Click on the name of the customer whose invoices you'd like to see.
3. Select Filter.
4. On the Type section, select All invoices.
5. On the Date section, choose the date you created the invoice.
6. Then, click Apply.

By performing the steps, you can find any customer or vendor transaction without delay. I'm also including our detailed guide on searching for transactions that you may find helpful.

That should do it! Don't hesitate to leave a comment below if you have any follow-up questions. Take care.