Unable to change Location on the Item Fulfillment

1. Navigate to Setup > Accounting > Accounting Preferences
2. On the Order Management tab > Fulfillment section > Fulfill Based on Commitment = Limit to Committed
3. Change Limit to Committed to Allow Uncommitted or Ignore Commitment.
4. Save.

Note: Limit to Committed  does not allow change of Location on the Item Fulfillment since the items are already restricted to the initial location set.