Which operation does NOT contribute to sending data in bulk within NetSuite?

The operation that does not contribute to sending data in bulk within NetSuite is data manual entry. Manual entry involves an individual user inputting information directly into the system one record at a time. This process is inherently slow and inefficient for large datasets, and it does not leverage bulk data processing capabilities that the other operations offer.

In contrast, web services, CSV import, and SuiteScript are designed for handling data in larger volumes. Web services facilitate automated interactions with external systems, allowing for bulk data transfers via API calls. CSV import allows users to upload multiple records simultaneously by providing data in a comma-separated format, enabling quick and efficient data loading. SuiteScript can automate processes and manipulate large datasets, making it highly suitable for bulk operations within NetSuite.

Thus, the key difference lies in the method of data handling, where manual entry cannot match the efficiency and volume capacity of the other options.