\n{“error”:{“code”:”0x80060888″,”message”:”Property _prefix_fieldname_value cannot be updated to null. The reference property can only be deleted.”}}<\/p>\n<\/blockquote>\n\n\n\n
The issue with this error is when he try to update one of the lookup value into null using PATCH method.<\/p>\n\n\n\n
The request body is setting as “_prefix_fieldname_value”: null.<\/p>\n\n\n\n
After further checking, it is because he is missing request header “Autodisassociate” : true.<\/p>\n\n\n\n
By setting this in the request header, the PATCH method went through successfully with response 204.<\/p>\n","protected":false},"excerpt":{"rendered":"
We came to an issue whereby we have tester to use the D365 Web API. He is getting below error: {“error”:{“code”:”0x80060888″,”message”:”Property _prefix_fieldname_value cannot be updated to null. The reference property can only be deleted.”}} The issue with this error is when he try to update one of the lookup value into null using PATCH method.… Read More »Issue when Update Entity Reference To Null<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1],"tags":[44,16,51],"class_list":["post-139","post","type-post","status-publish","format-standard","hentry","category-dynamics","tag-dynamics-365","tag-sdk","tag-web-api"],"yoast_head":"\nIssue when Update Entity Reference To Null - Dynamics Blog<\/title>\n<meta name=\"description\" content=\"Hitting error: Property _prefix_fieldname_value cannot be updated to null. 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