Requirement to Make AP Invoice Page Read-Only for Externally Created Invoices

Summary:

How to make AP Invoice Page Read-Only for Externally Created Invoices

Content (please ensure you mask any confidential information):

We have a requirement where few invoices are created from an external source, and for such invoices we want to make the Invoice Details page read-only (or at least disable action buttons).

Apart from personalization, are there any other recommended approaches to achieve this requirement (e.g., roles, approvals, configuration, APIs, etc.)?

We initially tried to achieve this using Page Personalization (EL expressions in Page Composer), but are facing issues with bindings/BindingParams. For Example: The BU is “ABC” and is populated in the invoice.