PO balance amount vs Invoices

Summary:

wich better practive to setup one or many suppliers for that your purchase order have an effective balance amount control, i.e. restrain operator to not receive a new invoices if their amount greater than balance amount from purchase order ?

Content (please ensure you mask any confidential information):

PO 9999 with amount 6, receving 3 invoices 2k, however last invoice came 3,5k and user desire to block this receiving

Version (include the version you are using, if applicable):

25B

Code Snippet (add any code snippets that support your topic, if applicable):