One of the prerequisites that a Fiori UI could be extensible is that it should have a corresponding business context registered in tcode SCFD_REGISTRY:
For research purpose, we can get a list of all available business context and save it locally via a Batch request in postman:
Content type: multipart/mixed;boundary=batch_19f5-6916-f298
x-csrf-token: you should generate it dynamically
request body:
--batch_19f5-6916-f298
Content-Type: application/http
Content-Transfer-Encoding: binary
GET BusinessContextSet?$skip=0&$top=500&$inlinecount=allpages&$orderby=BusinessContextDescription%20asc HTTP/1.1
Accept-Language: en
Accept: application/json
MaxDataServiceVersion: 2.0
DataServiceVersion: 2.0
--batch_19f5-6916-f298--
an example of response got from QJ3/500:
the business context for MARA:
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