HANA Expert Script within Transformation into ADSO

Hello Experts,

today I created a DTP process from one of the NW Demo DataSources into an ADSO Object. Because within the DataSource are all Time Fields defined as Timestamp, I need to use some logic to transfer the timestamp into regular date format. I figured out the correct syntax for the conversion necessary within my HANA Expert Script Routine.

But when I try to activate my Transformation, I get an error message regarding the Technical Fields of the ADSO. In particular it is the Request ID Field.

What do I need to add into my HANA Expert Script, so that the Request ID is correctly filled within the Transformation?

We are using BW Netweaver Release 7.4 SP8

Regards

Stephan