How to return text values from a Business Rule (without using Smart Lists)?

Hi everyone,

I’m trying to write a Groovy Business Rule in Planning (EPBCS) that returns or assigns a text value to a member.

The requirement is to store a text string (for example, a JSON log or timestamp like "202511150830|user").

I do not want to use Smart Lists, because the value must be free-text and dynamically generated.

However, it seems that:

• Calculation scripts can only assign numeric values
• Text assignments like "ABC" Or functions that return strings cause a type error
• @CalcMgrConcat () and similar text functions also return a string, but cannot be assigned to a normal member
• Regular members (Numeric data type) reject any text