https://sharepoint.stackexchange.com/questions/273037
Question
Arigato is a lookup field. I would like to change its value. I got error with FieldLookup. Can you help me?
Solution
To update Lookup field, you have to use this format in the body:
'<LookupColumnName>Id':'<ID>'
You should use this: 'ArigatoId':'7'
'ArigatoId':'7'
For example: