Free memory after Function call

Hi,

Is there a possibility to free the memory after a call to a function.

The call is only used for display, not to get data.

(For example - CALL FUNCTION 'FKK_BUPA_DISPLAY')

Our z-transaction delivers a way of navigating through different ISU objects (coming from an ALV list)

The user first selects a case from this list and then he receives the details. From the details screen we then call these standard function to display the ISU objects.

During the day memory usage is getting build up and it's only released when the user leaves our z-transaction.

Ideally the memory should be released when the user returns to the list and not at the end of the day when he leaves the transaction.

I've tried with FREE MEMORY but this doesn't help.

Greetings,

Ivo