QB Issue Resolution:

Exact same process, just uncheck the print later if it is checked

for the future,
your vendors invoice to you his customer is your bill
your invoice is to your customers

makes it easier to understand the question here

Resolution for Issue 'how do i enter payments for invoices when I am writing manual cheques instead of printing computer cheques?' available: Yes (Solved).
Source: Intuit Community forum.

how do i enter payments for invoices when I am writing manual cheques instead of printing computer cheques?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for computer cheques
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Error Recovery for computer cheques [Canada]
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