S:RSSDK:300 Field ROUTERCALLKEYSEQ not a member of /BIC/CAIM_R OUT000010000

I want to load data from a UD Connect datasource. This worked fine until I added a new field. At first this worked too, but now I get this message:

S:RSSDK:300 Field ROUTERCALLKEYSEQ not a member of /BIC/CAIM_R OUT000010000001

Meldungsnr. RSSDK300

I found one ⚠️ answer:

I found a fix for this issue. "Refer OSS note 1009063".

As recommended in the OSS note we selected the option "Local_Bundle" in the Jco RFC definition in the visual adminstrator. That fixed my issue.

But I did not understand that. Do I have to change the source system? Or the source database?

Thanks for your answers!

Claudia