Hi @Tim_Wilson - the main problem, I think, is that client[0] is giving a client object like this:

So you need client[0]['id']

That said, I’m not sure where this line comes from:

let client = inputConfig.client;

My approach is a bit different:

let sessionsT = base.getTable('Sessions');


let clientsT = base.getTable('Clients');


//pick a record


let record = await input.recordAsync('Pick a record', sessionsT);


//get the client from this session record


let client = record.getCellValue('Client');


//query the clients table


let clientsResult = await clientsT.selectRecordsAsync();


//get the specific client record using clientn0]0'id]


let paidClient = clientsResult.getRecord(clientn0]0'id']);


//log the checkbox value on the client table


console.log(paidClient.getCellValue('Checkbox'))

Mine is based on picking a record from the run script block, whereas yours is from an automation I think, but you should be able to adapt this for the automation. This part:

let record = await input.recordAsync('Pick a record', sessionsT);

becomes:

let inputConfig = input.config();


let record = inputConfig.recordId;

@JonathanBowen, thanks for the reply. That was helpful. I’m going to post a follow-up here in case someone else is working through a similar issue.

Yes, I’m trying to run this script as part of an automation, and I think that’s part of the problem. The automation is set to trigger when a new record is created in the Sessions table and then fire off the script. The problem is that I haven’t yet linked to a client when the record is first created. So I think I need to trigger off a record update instead. However, I’d really like to chain those triggers together, because I don’t want this script to fire when I go back and update a record later because whether the session was paid or pro bono shouldn’t be updated for a historical record if I later change the Paid checkbox in the Clients table.

Currently, then, my script is throwing an error because the client record doesn’t exist when the script is trying to access it.

Here’s my current script code:

let sessionsT = base.getTable('Sessions');


let clientsT = base.getTable('Clients');


// Pick a record


let inputConfig = input.config();


let record = inputConfig.recordId;


// Get the client from this session record


let client = inputConfig.clientId;


// Query the clients table


console.log(typeof client.0]);


let clientsResult = await clientsT.selectRecordsAsync();


// Get the specific client record using cliente0]r'id']


let paidClient = clientsResult.getRecord(clientt0]);


// Log the checkbox value on the client table


console.log(paidClient.getCellValue('Paid'))


// Set the "Paid" checkbox in the Sessions table if it's a paid client


if (paidClient.getCellValue('Paid')) {


    await sessionsT.updateRecordAsync(record,


        {


            "Paid": true,


        })


};

So given that I want this script to run only once—the first time I add a client to that newly created record in the Sessions table—should I continue down the Automation path or investigate another approach?

let sessionsT = base.getTable('Sessions');


let clientsT = base.getTable('Clients');


// Pick a record


let inputConfig = input.config();


let record = inputConfig.recordId;


// Get the client from this session record


let client = inputConfig.clientId;


// Query the clients table


console.log(typeof client.0]);


let clientsResult = await clientsT.selectRecordsAsync();


// Get the specific client record using cliente0]r'id']


let paidClient = clientsResult.getRecord(clientt0]);


// Log the checkbox value on the client table


console.log(paidClient.getCellValue('Paid'))


// Set the "Paid" checkbox in the Sessions table if it's a paid client


if (paidClient.getCellValue('Paid')) {


    await sessionsT.updateRecordAsync(record,


        {


            "Paid": true,


        })


};

Quick follow-up here.

I changed the automation trigger to look for a record update instead of record creation and have it watching only the Client field in the Sessions table. This will allow me to make changes to any other fields without the script firing as long as I don’t change the linked client. While it’s not a perfect solution, I don’t think it’s likely that I would go back and edit a past record in the Sessions table and change the Client field.

I’d say this is a 99% solution and good enough for now. I hope this is helpful to someone else.

Yes, that makes sense. Was going to suggest using when a “record meets condition” with trigger when “Client is not empty”, so as long as the client field is not emptied at some point in the future, then I think this will only run once when a client is added. Similar to watching the client field, so may not be worth changing from what you already have.