My experience has been that past transactions get changed when using the add/edit function

That said it has been a couple of years of QB since I needed to do this.

Make a back up, make the change using add/edit, and check – if you do not like the results, restore from […]

Resolution for 'change using issue: 'Editing an individual item produces a warning about past transactions. If I use the multiple-item edit screen, I do not. Does it change past transactions?' available: Yes.

The change using 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 change using issue yourself by looking for a resolution described in the article. If it is a complex change using issue or you are unable to solve the issue, you may contact us by clicking here or by using other change using support options.

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