Update Lookup Type Custom Field using CSOM

Update Lookup Type Custom Field using CSOM

In this post, I described you to Update Lookup Type Custom Field using CSOM. Basically below is code for Update Project level Lookup Type Custom Field. If you need to update task level custom field using csom, Follow my post Update Task Level Custom Field using CSOM.

Note: Custom Field Value is set as (Custom_You custom field GUID without a hyphen). Let’s say your custom field GUID is 84b123af-e227e611-80d80015-5d1c7718. Now set is as (Custom_84b123afe227e61180d800155d1c7718) and Associated Lookup Entities as simple Entities ID. If you don’t know how to get Lookup Entities ID, Follow my post Get Lookup Table Data using csom in Project Online

If you don’t know to add references in your solutions then follow the post below

Add  references in Solution

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