File name from RFC

Hello,

I have scenario from RFC to File(CSV).

The RFC structure is:

<Z_PORTAL_PURCH>

<LAND></LAND>

<PURCH_PRICE>

<item>

<a></a>

<b></b>

<c></c>

</item>

</PURCH_PRICE>

</Z_PORTAL_PURCH>

The target is:

<ECC_PURCH_PORTAL>

<item>

<a></a>

<b></b>

<c></c>

</item>

</ECC_PURCH_PORTAL>

I able to create the file with correct stracture

Now I try to change the file name and take the paramer from <LAND> field in the RFC

How can I do this?

Elad