Question about the capabilities of the RFC Adapter in SAP CPI

Hello Experts,

I'm trying to develop an Integration Flow within the SAP Cloud Platform Integration (CPI).

I've a question about the RFC Adapter in CPI.

In the SAP Help Portal it says the following about the RFC Receiver Adapter:

"Currently we do not support any complex parameters such as table parameter inside structure parameter or structure parameter inside table parameter in both input and output XMLs."

Is it true that I'm not able to pass an BAPI call like this through the RFC Adapter?

<ns1:_-HECMC_-BA1_GET_CUSTOMER_DATA3 xmlns:ns1="urn:sap-com:document:sap:rfc:functions">
      <import>
             <IV_SPART></IV_SPART>
      </import>
      <tables>
             <IT_KUNNR><item><KUNNR></KUNNR></item></IT_KUNNR>
      </tables>
</ns1:_-HECMC_-BA1_GET_CUSTOMER_DATA3>

Is there any alternative way to use table parameters within the CPI?

Regards

René