- **OPERATIONS** is our parent/source company, centralizing all reference data for the group (customers, vendors, G/L accounts, posting groups, etc.).
- **PARAM** is a template company, already fully configured with all the MDM synchronization tables we need (match-based coupling, key fields selected, "Create if no match found" enabled). It serves as the base model for all new subsidiary companies.
- Each new **subsidiary company** (we need to set up around 10 to 15) is created by copying PARAM, then connected to OPERATIONS as its MDM source company.
1. Copy PARAM to create the new subsidiary
2. Clean up irrelevant data in the new company (customers, vendors, posting groups that don't apply to this entity)
3. Set up filters on the synchronization tables (to only sync relevant data for this subsidiary)
4. Disable "Create if no match found" on all tables
5. Run the initial synchronization table by table (never "Start All" at once), starting with simple tables before more complex ones
6. Check the synchronization journal after each table (0 failures before moving to the next)
7. Re-enable "Create if no match found" table by table, only after confirming 0 failures

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