Your answer to this question is likely customizations… customizations that were once the best thing since sliced bread but now have become the bane of your existence.

There is something you can do about it! 

Crossroads RMC has many options for LX & BPCS when dealing with customizations:

OPERATIONS: Update, Cancel or Remove Outbound Order Lines

FINANCE: Currency Differences Accounts

TECHNOLOGY: Advantages of Data Replication

Instead of sharing tables through logical linking, you can replicate table content between companies. This approach allows certain non-key attributes of a record to vary by company. For example, if you replicate bills of materials rather than sharing them, each company can associate a different warehouse with the same bill of material. This way, the bills of materials are consistent across companies, while the warehouses can differ.

Replication also enables selective availability of records in other companies. For instance, when replicating items, you might limit which items are available in a sales company based on their item group, only including end items. You can further refine replication to specific subsets, such as particular item groups.

Keep in mind that replication requires any referenced tables to be either replicated or shared as well.