Handling multiple simultaneous form submissions in n8n → Google Sheets

Questions
1

Hi everyone,

I have a workflow where a form on the internet (e.g., Typeform or Google Forms) sends responses to n8n via a Webhook, and then n8n appends the data to a Google Sheet.

I tried sending 4 responses simultaneously, and it seems that some of them were not recorded in the sheet.

I’m using the n8n cloud not self-hosted.

My questions:

  • How do you recommend managing high concurrency for this type of workflow in n8n to ensure all submissions are captured?

Thanks in advance for your advice!

2

First, check your current concurrency limit in the n8n Cloud UI

Try enabling the “minimize API calls” option in your Google Sheets node

If issues persist, implement the RabbitMQ queue solution for guaranteed sequential processing OR use Data Tables, or any other relational DB that is faster , and doesn’t have limit like Sheet has.