how to force a AWS Lambda to complete all the code - aws-lambda

Question

I have a lambda that is inserting a record into an Airtable db. This should be pretty straight forward and I have it working locally.
Once I put it into Lambda the record is not inserted. I have been messing with this for 2 days and can't figure out why the record won't load into Airtable.
The only other note that matters is that this lambda is long polling for SQS messages.
console.log('Loading function');
const Airtable = require('airtable');
const apiKey = process.env.AIRTABLE_API_KEY;
const BaseTable = process.env.AIRTABLE_BASE_TABLE;
var base = new Airtable({
apiKey: apiKey
}).base(BaseTable);
const table = base('Contacts');
exports.handler = async (event) => {
for (const {
messageId,
body
} of event.Records) {
console.log("iteration: " + iteration);
const data = JSON.parse(body);
var fields = {
"Full Name (First Middle Last)": data.firstname + ' ' + data.lastname,
"Email": data.email,
"Phone": data.phonenumber,
"Address": data.address_one + ' ' + data.address_two,
"City": data.city,
"State/Province": data.state,
"Postal Code": data.zip,
"Country": data.country,
"Birthday": data.dob,
};
insertRecord(fields);
}
console.log('before the end');
};
function insertRecord(fields) {
console.log('insert Record');
return new Promise((resolve, reject) => {
table.create([{
fields: fields
}], function(err, records) {
if (err) {
console.log('ERROR');
console.log(err);
reject(err);
} else {
console.log('SUCCESS');
resolve(records);
}
});
});
}
I have been googling, and reviewing, others' answers for multiple days now.