QB Issue Resolution:

One thing to look for is to make sure you don’t have two items with that name already. That should be impossible but perhaps there’s a bug that allowed it. You can filter the items list by typing the first part of the item name in the search bar. Let us know if a duplicate turns out to be the case.

Resolution for Issue 'When I try to edit an item in the item list, it says an item of the same name already exits and won’t let me put the cost of the item in?' available: Yes (Solved).
Source: Intuit Community forum.

When I try to edit an item in the item list, it says an item of the same name already exits and won’t let me put the cost of the item in?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for item list
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for item list [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.

Get 50% off Quickbooks Online

Click Here for 50% off!

Additional Support Options: