How to share record with user using WebApi – Andrew Butenko’s Blog

var target = {

“accountid”: “ACAAB842-21C7-E811-A96F-000D3A16A41E”,

//put <other record type>id and Guid of record to share here

“@odata.type”: “Microsoft.Dynamics.CRM.account”

//replace account with other record type

};

var principalAccess = {

“Principal”: {

“systemuserid”: “d272654b-57f5-4564-8d0b-36d0d4c426c4”,

//put teamid here and Guid of team if you want to share with team