if you are using multiple unit of measure ( and I do not recommend it) you either see the inventory quick report as showing full cases, or a mixed number of cases and singles that really make no sense, see this review to see what I mean
Resolution for 'Breaking up issue: 'Breaking up cases to sell' available: Yes.
The Breaking up 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 Breaking up issue yourself by looking for a resolution described in the article. If it is a complex Breaking up issue or you are unable to solve the issue, you may contact us by clicking here or by using other Breaking up support options.
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