Hello EmmaPetrig
Welcome to the Community Forum.
When you set up the file, are you using the same ABN, or have you input a different one?
It may be that due to having multiple entities set up with an identical ABN used for these, the ATO treats these as duplicate lodgements every time and will then cause a failed lodgement.
Suggested advice has been indicated to be to ensure all affected employees are transferred to one common employing entity. I would also encourage you to reach out directly to the ATO with this issue if you are having further concerns regarding this situation.
If this has been useful, please consider marking this post as a solution so that others can find information easier.
