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## Entries API "Seed data on create" feature promoted to stable

The ability to pre-populate structured tables when creating a notebook entry from a template (i.e. “seeding data”) is being supported in the stable version of the [“Create a notebook entry” endpoint](https://benchling.com/api/v2/reference#/Entries/createEntry). The corresponding beta endpoint is now deprecated, and will be sunset on **March 28th 2023**.

### What’s changing?

The beta version of the [“Create a notebook entry” endpoint](https://benchling.com/api/v2-beta/reference#/Entries/createEntry) of the Entries API supports the `initialTables` parameter, which allows structured tables in a notebook entry template to be pre-populated with data upon creation. This functionality is referred to as “seeding” structured tables with data, and provides a way for integrations to pre-populate notebook entries with important data.

This feature is now being promoted to stable: Going forward, the stable version of the [“Create a notebook entry” endpoint](https://benchling.com/api/v2/reference#/Entries/createEntry) will support using the `initalTables` to seed data for notebook entries created from templates. Accordingly, the beta version of the `POST /entries` endpoint is now deprecated, and will be sunset after 30 days per Benchling’s [Stability Guidelines](/docs/stability).

### When is this happening?

The stable version of the [“Create a notebook entry” endpoint](https://benchling.com/api/v2/reference#/Entries/createEntry) supports the `initialTables` parameter effective immediately.

The beta version of the [“Create a notebook entry” endpoint](https://benchling.com/api/v2-beta/reference#/Entries/createEntry) is deprecated effective immediately, and will be completely sunset on **March 28th 2023**