72005: LiveSync MongoDB pipeline is invalid

A LiveSync MongoDB connector could not start because the aggregation pipeline in its configuration was not accepted by MongoDB, for example because it references a stage or field that is not allowed.

What you should do

Correct the aggregation pipeline in the connector's configuration. Check for unrecognized operators or invalid syntax, and make sure every stage is one MongoDB accepts on a change stream.

Why it happens

The MongoDB connector could not start because MongoDB rejected the aggregation pipeline in its configuration. This is usually an unrecognized stage or operator, a field that isn't allowed, or a syntax error.

What you'll see

The error is reported with code 72005 and HTTP status 400. The message is of the form invalid pipeline: <detail>.