> For the complete documentation index, see [llms.txt](https://docs.lenses.io/latest/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lenses.io/latest/k2k/1.2/readme/concepts-1.md).

# Free version restriction

Specifies the restriction versus paid

The free version of the replicator has the following functional and throughput restrictions:

#### 1. Topic-Partition Limit

The replicator is restricted to processing a maximum of 5 topic-partitions per replication pipeline.

* This limit is the sum of partitions across all topics being replicated in a single application.
* If the total number of topic partitions exceeds 5, the replication pipeline will stop.

#### 2. Feature Restrictions

The following features are not supported in the free version:

* Exactly-Once Processing: Guaranteeing message delivery without duplicates is unavailable.
* Schema Mapping: The ability to transform or map schemas between source and destination topics is unavailable.


---

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