We are using the REST API to upsert records into Salesforce in real-time, which means there is only ever 1 record to upsert at a time.
For the initial load of data we are going to use the same integration for our 40K records, this means each request will be equate to a single record which is below our 24 hour API usage limit.
What I want to know is, is there any throughput limits that I need to be aware of? i.e. Can I make all 20k requests within 30mins?
Lastly does this differ for custom REST end points that we build?