How to extract data from another custom module to include them automatically in the Accounts module

How to extract data from another custom module to include them automatically in the Accounts module

Hi,

We are an IT services company that sells software licenses of various brands.

We have within the Opportunities Module, personalized fields that are loaded in each Opportunity the number of software licenses that our clients renew or buy.



We need to know how to visulize the number of licenses per brand that a customer has accessing the Accounts Module.

From what I have seen it is necessary to create personified functions. How is it possible to do this?