How to customize new ID_ORIGIN for Interaction Type "SOCIAL_POSTING"

Hi All,

we are on SAP Marketing Cloud 1808.

Our customer is using 5 different Facebook Pages. Under no circumstances contacts of these facebook pages should be matched as they belong to different marketing areas.

We have no problem when uploading the contacts but when we upload the interactions with the new ID_ORIGIN "FB_MASPBW" the following error message is appearing:

The ID Origin is created in this way:

We use the following ODATA Call to upload the interaction into the system:

We have seen the following description on the web:

For this reason we have named the communication medium as same as the ID_ORIGIN (FB_MASPBW).

We have assigned Communication Media "FB_MASPBW" to Channel "SOCIAL" and Interaction type "SOCIAL_POSTING" is assigned to communicaiton media "FB_MASPBW". Moreover

I can not see any other way to customize this scenario. The question I have is "How can I load the interaction type "SOCIAL_POSTING" with ID Origin "FB_MASPBW" in our system"?

BR/