Monday's Error Cannot read properties of undefined (reading 'change_column_value')

[Cade_Macritchie]

Getting this error: Cannot read properties of undefined (reading ‘change_column_value’)

Not sure if it’s my JSON body or something else.

I have made sure that the field type is “text” not “long_text” or other.
My version is also on the latest (stable) not sure if I need to try the beta?

[hubschrauber]

You might be overthinking the Value field. It is a little odd the way the node is constructing the API call, but the Column Name or ID already specifies the description (attribute name) part. All you probably need in the Value field is a quoted string "Done" and switch it back to “fixed” instead of “expression”.

So not this:

but this:

[hubschrauber]

BTW, in case the help/docs link is broken, the actual docs for that API are here.

What n8n should be sending to https://api.monday.com/v2/... is

mutation {
  change_column_value(item_id: 123456789, board_id: 11223344, column_id: "description", value: "Done")
}

• column_id comes from the Column Name or ID field (picked from drop-down)
• value comes from the Value field (entered as text that would be valid where "Done" appears in the example above… double-quotes make it “valid json” to make the n8n field-validator happy)

[Cade_Macritchie]

Ok that solved it. I think I was getting confused between the change single column and change_multiple_columns mutation. (Which is really the one that I want). I think that this one requires key value pairs, but i’m getting the same error when I format like this: