Data Model - Change Key Assignment

[#1]

Hello,

I need to change the Key Assignment for an Entity in a Custom Data Model from Key Cannot be Changed to Key can be changed due to new requirement to change the key field.

The changes cannot be saved because the following error message occurs:

Data model zz, entity type zz: Type of key assignment changed.

Do you have any idea how to perform this kind of change? Any suggestion will be helpful.

Thank you!