Shopify enforces API rate limits

[MinhLeos]

I am currently using custom pixel to collect data, I use GTM and dataLayer. But in the process of collecting data, I have missing data between the number of orders sent to GTM and the actual number of orders in shopify. I asked shopify support and they said it was due to Shopify enforces API rate limits . I don't know where to see this limit or how to increase the limit, can anyone guide me? Thank you.