Click on the dependencies

Type your modules name where is the entitys

And search for the entities on the input search public elements.

Dont forget that for that you need to expose your entities if you want to consume on the consumer module. Once you change, publish the core module and you will be able to see on the consumer module the entities.

You have another way is by creating server actions and you can create your CRUD on the other module by making the server actions public.

Have a look at this

https://success.outsystems.com/Documentation/11/Developing_an_Application/Reuse_and_Refactor/Expose_and_reuse_functionality_between_modules?_gl=1*1kzy3zi*_ga*NTE5ODUyNDc3LjE2NDgwMjU1NDM.*_ga_ZD4DTMHWR2*MTY0ODU1OTE3NC40LjEuMTY0ODU2MDkyOC41Ng..

You can also have a look here:

https://www.outsystems.com/forums/discussion/67778/should-my-data-model-definition-be-in-a-separate-module/

Kind Regards,

Márcio