we need to update hundreds of products but we haven't found documentation about bulk update. Could anybody recommend how should we do it avoiding a "too many requests" error?
Thank you for contacting us.
This means that you are hitting the rate limits. Unfortunately you'll need to update the items one by one.
You'll need to build a buffer/queue in your app to respect our rate limits. More information about our rate limits please check https://developers.lightspeedhq.com/retail/introduction/ratelimits/