11.45Salesforce record locking at scale

Example:

10,000 Contact updates

all touch:

same Account

Concurrent writes may produce locking/contention.

Possible approaches:

reduce concurrency
group by parent
process serially where necessary
retry lock-related transient failures

This is why bulk concurrency mode/settings can matter.

The current connector's classic Bulk job configuration supports concurrency modes such as serial and parallel.