MDX: Write to base level

Hi Experts,

I have the following scenario:

There is a Parent member (customer), it can have up 20 base members underneath.

I want to write a Script that writes the value of the parent member, to every child (which is a base member).

My code looks like this:

*WHEN CUSTOMER

*IS PL0095001717_D

        *XDIM_ADDMEMBERSET CUSTOMER = BAS(PL0095001717)

        *REC(EXPRESSION=%VALUE%)

*ENDWHEN

*COMMIT

PL0095001717_D is a dummy customer parent, (PL0095001717 is the Parent) because BPC does not allow input on a node level.

Unfortunately in the script logic debugger it shows that it is getting the customers from the parent (in this case 23), but its not writing to them...

Would you please be so kind to assist?

We are using BPC 7.5