Manage Inventory Transaction using FBDI (Error-INV_MATRX_MRP_UPDATE_ERROR)

Summary:

We are trying to perform Account Alias Issue for few items using Inventory Transaction import template FBDI.
Few items were not loaded to system.

When we ran query "Select * from INV_TRANSACTIONS_INTERFACE where ITEM_NUMBER in ('Item1','Item2',etc)

And seeing following Error codes and explanation

INV_MATRX_MRP_UPDATE_ERROR

Negative inventory balances are not allowed in this organization.

INV_NO_NEG_BALANCES

Negative inventory balances are not allowed in this organization.

Please let us know what does these error mean.