Hi there, tableegh.
The option to apply a single payment to multiple customers is currently unavailable. For now, you will need to split the payment so you can apply it with invoices from different customers.
Here's an article about receiving customer payments in QuickBooks Desktop for more details: Record A Payment For An Invoice.
Let me know if you have follow-up questions.
i have around 1000+ invoice, for which i have received payment together. All invoices are saved under different customer name.