Blocking invoice creation in background when there is a pricing error for multiple documents

While creating an invoice through VF04/VF06 - we have to do the following checks:

if there is any pricing error in the document, we should restrict the system not to create an invoice for that particular document and should continue for the rest of the documents.Also,that error message should be displayed in batch job log,

Here is an example:

Delivery documents :say 1,2,3

1-Invoice should generate

2-Invoice should not get generate because there is a pricing error

3-Invoice should generate

Kindly suggest.