ADF Error when correcting information in a Position

Summary:

Hello,

We have a position where Overlap Allowed was initially set to No.

Now, the client wants to set Overlap Allowed to Yes. When doing it, she faced the following error shown below.

Note 1: The position has already an incumbent and when correcting Overlap allowed, we faced the error.

Note 2: For another position which does not have an incumbent, we did not face the error.

Can someone advice on this please?

Thanks

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