Appending to a linked record using scripting

`record.getCellValue('Worksheet: BOM')` returns an array.  You need to push the new ID into that array, and then use the updated value in your updateRecordAsync action

@ChrisG You don’t need to use a script to append linked records to a linked record field. You can use Airtable’s normal “Update Records” automation action. You just need to insert the new value, follow it by a comma, and then insert the original field afterwards.

The `record.getCellValue('Worksheet: BOM')` returns an array of the value " {id: string; name: string;}[] while I am only trying to push a ID into that array. Additionally, the updateRecordAsync action only accepts the object of {id: string}, which is not what the record.getCellValue returns. How do I get an array of only {id: string} instead of {name: string}.

Additionally, @ScottWorld  I have tried already to use simply automations: however, it has not worked for me. I tried to resolve this problem here: 

https://community.airtable.com/t5/automations/linking-several-records-to-a-single-record-in-another-table/td-p/156226

Your automation is failing because you're not giving it a valid Record ID where it asks for Record ID. You can only feed it one Record ID at a time... you can't give it a list of Record ID's. You would need to use a repeating group to do what you want to do.

Correct me if I am mistaken, but I think the updateRecordAsync accepts multiple ID's if you push them through an array. This is on the airtable developers wiki:

I tried to mimic their code, however it does not work for me.

I was referring to your post at the other link. You can't use Airtable's native automations for what you want to do unless you use a repeating group. I don't know scripting, so I can't help you there. But you can do everything you want natively with Airtable's native automations. You don't need to write a script.

If you generate a new array like this code, you can write record links.

This works but I am not able to use the updateRecordAsync function as I am getting this error.

I assume I have to cast it to an array of type {id: string} but I do not know how to do that.

The object must be written according to the "Cell write format" on this page.
Cell values & field options - Airtable Scripting

Since the bomIDs are as formatted, you can be updated this way.

Hey Scott, I'm getting this to work on string fields, but not for linked records. Not sure why it's different, but it is  not working for linked records.