Limitations and considerations

Using MongoDB as a source database in a Qlik Replicate task is subject to the following limitations:

When storing changes in Change Tables, the before image will not be stored.
When processing an UPDATE operation on the source, the most up-to-date copy of the document will be replicated to the target, For example, if three UPDATE operations were performed on a document, only the document with the last UPDATE will be replicated to target.
Unlimited LOB size is not supported.
Capture of new empty databases and new empty collections is not supported. A new collection must contain at least one document before it can be captured.
Table content filters are not supported.
Database names must be English only.
Dropping or renaming source collections:
- During CDC: If a source collection is renamed/dropped during CDC, it will be suspended (i.e. excluded from the replication).
- During Full Load: If a source collection is renamed/dropped during Full Load, the task will stop.
Dropping or renaming source databases is not supported.
Replication of transactional audit data is not supported.
Replication of a document in a collection that contains a reference to other documents using DBRefs is not supported.

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