Does EPCM Custom Calculation supports String Operations on left side (Target) of the script?

Summary:

Targeting the results to certain ICP Dimension members ICP_**** from an alternate hierachy of Product Dimension whose parent will be CP_****.

Content (required):

we want to target the results to certain ICP Dimension members ICP_**** from an alternate hierachy of product whose parent will be CP_****. I tried creating some string functions in the Custom Calculation but encountering some error with parenthesis? Is there any better way to acheive this?

Version (include the version you are using, if applicable):

23.09.68

Code Snippet (add any code snippets that support your topic, if applicable):

Target Dimension (Intercompany)

STRTOMBR(CONCAT("I",(Parent([Product].CurrentMember)))) := ([No Intercompany],[PCM_Allocation In]);