HTTP POST request to clear person field

[kcg633755]

Hey everyone,

Does anyone know why this HTTP request is not clearing my SharePoint list person field?

I am guessing the space in my list title is causing an issue. I have tried every combination to resolve and I am still getting this 400 error message...

"An entry without a type name was found, but no expected type was specified. To allow entries without type information, the expected type must also be specified when the model is specified.
clientRequestId: c0f2f924-db36-4e41-a54b-66541721533a
serviceRequestId: 971c26a0-e0e8-3000-ac9e-869adb580c2d"

Any help would be grand.

[abm]

Hi @kcg633755 

Try removing the "Sendtold":"", line from the above.

Thanks

[kcg633755]

Thanks abm,

Unfortunately that didn't resolve the issue.

[abm]

Hi @kcg633755 

Try the below in your HTTP body

{
'__metadata':{'type':'SP.Data.Build%20ProjectsListItem'},
'SendToId':-1
}

[kcg633755]

Unfortunately, it failed again. 😣

[abm]

What is the failure message? I did tested this and worked for me. 

[abm]

Hi @kcg633755 

Ok I managed to replicate the error. 

Your list name is called Build Projects so in your http body you need _x0020_ for the spaces.

Build_x0020_Projects

Try the below

{
'__metadata':{'type':'SP.Data.Build_x0020_ProjectsListItem'},
'SendToId':-1
}

I have made a tutorial video about this.

https://www.youtube.com/watch?v=sd_Wnu1ukns

Let me know how it goes.

Thanks

[kcg633755]

Hi abm,

I had the _x0020_ already but spotted the two underscores before metadata which now is giving me a new error perhaps relating to the Send_x0020_toId field.

Error message 
An unexpected 'PrimitiveValue' node was found when reading from the JSON reader. A 'StartObject' node was expected.
clientRequestId: 964614ef-86f0-4e75-9416-b45651a5d2ca
serviceRequestId: d86928a0-d043-3000-c5c6-0953d6eaae2d

[abm]

Hi @kcg633755 

Without looking to SharePoint field schema names its difficult give you an exact answer. I have demonstrated in that video and tested it.

Thanks

[kcg633755]

Also, your helpful example was with only 1 person selected. My person field accepts multiple selections

[kcg633755]

Here is my schema

{
'__metadata':{'type':'SP.Data.Build_x0020_ProjectsListItem'},
'Send_x0020_toId':''
}

[abm]

Hi @kcg633755 

Here you go and thats the issue. You need a different syntax. I will get back to you.

[abm]

Since it holds multiple values you need to set with results:[0]

Try the below

{
'__metadata':{'type':'SP.Data.Build_x0020_ProjectsListItem'},
'Send_x0020_toId'::{'results':[0]}
}

Will also do a video later for this.

Thanks

[abm · Accepted solution]

Hi @kcg633755 

Here the video

https://youtu.be/6VtACLHmgAg

Thanks

[Jorge0911]

This solved the issue for me, thanks a lot!