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

You have to use Delete method to remove the lookup value format is as follows: /api/data/v8.0/accounts(1DD18913-11CB-E511-80D2-C4346BDC11C1)/primarycontactid/$ref