In order to be able to add an attribute to a custom blueprint in the New User Experience (UX), the attribute must have an API Attribute ID. However, in CA PPM 15.3, you are unable to add an API Attribute ID for a custom attribute on the Investment object so any custom attributes created on the investment object are unable to be added to Blueprints.
Steps to Reproduce:
1. In PPM, log in to the Classic UI
2. Go to ->Administration->Studio->Objects->Investments>Attributes
2. Click 'New' to create a new attribute
Expected Results: API Attribute ID field is visible so you can enter an API Attribute ID
Actual Results: API Attribute ID field is not visible
Note: If you enter required information and click Save you will also see that since there is no API Attribute ID, you cannot see the attribute in the Fields section of Blueprints in the New UX.
This is caused by DE36486