QuickBooks will recalculate previous acquired inventory depending on the start date you’ve selected when switching to FIFO. For additional information about this process, please refer to this article: https://quickbooks.intuit.com/community/Inventory-and-projects/FIFO-Options-in-QuickBooks-Desktop-En….
Resolution for 'acquired inventory issue: 'Switching From Average Cost to FIFO' available: Yes.
The acquired inventory 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 acquired inventory issue yourself by looking for a resolution described in the article. If it is a complex acquired inventory issue or you are unable to solve the issue, you may contact us by clicking here or by using other acquired inventory support options.
For more information about resolving issues related to acquired inventory in Quickbooks/QBO or to get support for the issue 'Switching From Average Cost to FIFO', click the link below: