Creating a new model pros and cons

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Posted on by DELDYN

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Hi,

If let's say, I have model B which references model A

Model A is for another company.

Which means i can see what model A have and call it but model A can't do so.

If let's say i'm now in a situation where i want to add something that i want model A to see it (but A can't reference B due to circular reference)

Which is better?

To create a new model, let's say model c. That both A and B can reference? And add the logic to model C. OR ask the other company to do the development on model A instead? ( The change is related to model B, but i thought i can do it with extensions without asking the other company to do it)

Are there any disdvantages of having many models?

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André Arnaud de Cal... 307,801 Super User 2026 Season 2 on at

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Hi Deldyn,

The disadvantage of more and more models would be adding complexity when it comes to implementing new requirements and fixing bugs. Can you explain what you mean with "Model A is for another company"? Is it one feature for one of the companies in your environment? Is it a customization done by a partner, is it an ISV solution?
DELDYN 582 on at

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Why would it be complex? Can u please explain more?

Originally there's an ISV model for company A

And company A also have model A (cus layer) which references the ISV model (most of the developments for them are done here and they go to the ISV when needed)

Now I have model B, which references A and the ISV model.

As i said i want to add some new fields that i want model A to be able to see and use if a case in the future might pop up that they need it. But i can't do that due to circular reference.

So I have two options:

- create new model C -- which references the ISV.

Model A and Model B will be referencing Model C

This option will save cost mainly

- let company A do the development in model A

So i wanted to know the disadvantages of going with option 1?

Note: The new fields and logic are related to the ISV model and some related to model A but can be implemented with extensions in model C that i want to create
André Arnaud de Cal... 307,801 Super User 2026 Season 2 on at

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Hi Deldyn,

I have seen some scenarios where per customization topic a new model was created, ending up with a lot of different models. In case you then need to reference two or more models, again, you would need to create a new model and use CoC methods. Sometimes, people mix up models and branching and create spaghetti...

In your scenario your option to create model C would be a viable option as model A is managed by a third party. In case you need high performance, you might do some tests to check the differences between different approaches (less models). When model A is a customization for your company, why can't you use this to create new customizations yourself?