You’re running into n8n’s hard execution + payload limits that’s why you can’t push more than ~10,000 rows in a single operation. It’s not something you can increase with an environment variable; the workflow just becomes too heavy for one transaction.
I can help you set this up properly by batching the inserts (e.g., 5k per chunk) and automating the loop so it still runs as one process without timing out.
Quick question: where are you inserting the 50,000 rows (Airtable, Notion, DB, etc.)? That affects the best batching method.