Users upload .csv files in an external system to create account and contact records in Salesforce. Up to 200 records can be created at a time. The users need to wait for a response from Salesforce in the external system, but the data does not need to synchronize between the two systems.
Based on these requirements, which method should a developer use to create the records in Salesforce?
Select an option, then click Submit answer.
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REST API request using composite/vbatch/
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REST API request using composite/tree/
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Apex web services
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Bulk API 2.0