At a glance

Two lessons share the same internal ID.

What causes this error

We've detected multiple lessons sharing the same internal ID. Every lesson must have its own unique identifier to avoid confusion during the scheduling process. This usually happens when importing data from an external file, like Excel, where duplicate IDs might have been assigned.

How to fix it

If you're importing from Excel, check your source file for any duplicate IDs and correct them before trying the import again. If you've entered the data manually, please reach out to our support team for assistance.

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