Setting null for single-valued navigation property using Xrm.WebApi

Question

We are in the process of remediation, re-engineering old JS web resources for latest D365 v9 sdk changes w.r.t Client scripting API improvements & deprecation.

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Answer 1

I just tried in v9.1.0.3832 var data = { _[LookupFieldName]_value : null } is working for me.

var data =
{
  "statecode": 1,
  "*_myprefix_mylookupfieldname_value*": null
}
Xrm.WebApi.updateRecord("*entityName*", *recordId*, data);