QB Issue Resolution:

When merging two items, you can reverse it. Then, all transactions will be under one item even in closed periods. It may also affect previous financial reports and the data associated with the merged item will be removed from your records.

If you’ve created a backup of your company file, you can restore it if you combine the two item items accidentally. This way you can recover all the transactions per item.

I have an article here about adding, editing and deleting items in QuickBooks: https://quickbooks.intuit.com/learn-support/en-us/physical-inventory/add-edit-and-delete-items/00/20….

Resolution for Issue 'Deleted Item during merging' available: Yes (Solved).
Source: Intuit Community forum.

Deleted Item during merging: 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 Company File
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for Company File [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: