Hello,
There are several steps:
1. Analyze what entities you need to have in target CRM based on source CRM.
2. Create Custom Fields/Entities/Relations if required.
3. Create mapping between entities/fields between source and target CRM.
4. Use some export/import tool that will allow you to get data from source CRM and import into target. I would suggest
SSIS Integration Toolkit.
Dynamics CRM MVP/ Technical Evangelist at
SlickData LLC
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