Are you looking at the audit log and seeing that sys admin user there?  If so and if you have scheduled transactions being made, that is where that comes from.

Resolution for 'being made issue: 'Question who is the system administrator? did the system administrator can add to our system?' available: Yes.

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

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