enhancement request to support "upsert" function import from SAP SuccessFactors API

Hi there,

Can you please consider a new enhancement to support "upsert" function import coming from SAP SuccessFactors API?

Metadata:

FunctionImport< Name="upsert" ReturnType="Collection(SFOData.UpsertResult)" EntitySet="UpsertResult" m:HttpMethod="POST" sap:support-payload="true" >/FunctionImport<"

Example payload:
Method: POST https://api2preview.sapsf.eu/odata/v2/upsert
Body: {
"__metadata": {
"uri": "FormPMReviewContentDetail(formContentId=169736L,formDataId=32107L)",
"type": "SFOData.FormPMReviewContentDetail"
},
"competencySections": [
{
"__metadata": {
"uri": "FormCompetencySection(formContentId=169736L,formDataId=32107L,sectionIndex=1)",
"type": "SFOData.FormCompetencySection"
},
"competencies": [
{
"__metadata": {
"uri": "FormCompetency(formContentId=169736L,formDataId=32107L,itemId=13550L,sectionIndex=1)",
"type": "SFOData.FormCompetency"
},
"officialRating": {
"__metadata": {
"uri": "FormUserRatingComment(formContentId=169736L,formDataId=32107L,itemId=13550L,ratingType='official',sectionIndex=1,userId='admin')",
"type": "SFOData.FormUserRatingComment"
},
"ratingKey": "wf_sect_1__c13550_r",
"rating": "1.0"
}
}
]
}
]
}

The issue provides SAP SuccessFactors function-import metadata, the POST endpoint, and a nested example payload, but names no repository files or tests. Start by tracing how function imports and POST requests are currently handled, then compare that path with the supplied upsert metadata. Done means the upsert import accepts the shown request shape and returns its documented result type.