Assigning Text Values via Business Rules in EPM Cloud in epm cloud (standard)

We are exploring the possibility of assigning or manipulating text-type member values directly within Business Rules in Oracle EPM Cloud. Specifically, we want to dynamically update a text member by concatenating parts of other dimension members (e.g., Entity, Year) after user data entry in forms.Our understanding is that Business Rules primarily support numeric calculations and do not natively support text assignment or string manipulation. Additionally, the EPM application environment we use does not support Groovy scripting, which limits scripting-based alternatives.Therefore, we seek official clarification on whether text assignment through Business Rules is supported, and if not, what recommended alternatives exist (such as Data Management or other methods) for achieving this functionality.We would appreciate guidance or documentation references on best practices for automating text field updates within EPM Cloud given these constraints.