QB Issue Resolution:

If you are only changing the expense category, disregard that warning.

Resolution for Issue 'Will my reconciliation be affected if I change the expense account from just “utilities” to a sub-account utilities/cellphone?.. amounts are ok.' available: Yes (Solved).
Source: Intuit Community forum.

Will my reconciliation be affected if I change the expense account from just “utilities” to a sub-account utilities/cellphone?.. amounts are ok.: 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 cellphone
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Error Recovery for cellphone [Canada]
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