# \#migration

**URL:** https://community.silverfin.com/tag/migration/185.md

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## [CASE: migrate data from one collection to another with the rollforward function (copy details)](https://community.silverfin.com/t/case-migrate-data-from-one-collection-to-another-with-the-rollforward-function-copy-details/1493)

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**Author:** [@sven](https://community.silverfin.com/u/sven)\
**Replies:** 0\
**Last updated:** [May 24, 2019, 12:17pm UTC](https://community.silverfin.com/t/case-migrate-data-from-one-collection-to-another-with-the-rollforward-function-copy-details/1493 "2019-05-24T12:17:37Z")

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What if we have a situation where we create a reconciliation template in which the custom collection was incorrectly linked to the period drop, like this : {% fori overeenstemming in period.custom.overeenstemmingen %} …