April 7, 2025: Enhanced Mapper Replay

General Release

Today we have enhanced Reactor's Mapper Replay functionality by giving users the option to retransform all versions of records, instead of just the latest version of each record. 

What is a Mapper Replay?

Mapper Replay is a process by which mapping configurations are reapplied to source data and the retransformed data is exported to the connected data destination. It allows Reactor users to retransform all source data collected and indexed by Reactor according to the latest version of a mapping configuration, future-proofing their data.

What has changed, and why does it matter?

Previously, users could only replay the latest version of each record stored in Reactor. Now, users can select the Replay all versions of all records checkbox to indicate they want to retransform every version of a record collected over time.

This capability ensures that outputs to database tables honoring Type 2 slowly-changing dimension (SCD) receive updates for all versions of all records when a mapping rule is changed and/or a new field is added to an output.

For more information about Mapper Replay, please refer to our updated documentation: Retransforming Data and Mapper Replay.

Are you interested in learning more about Reactor Early Access? Please do not hesitate to contact our Customer Success team for more information!