The system asks whether I want to delete the WBS and then confirms the deletion also but gives the following error when we try to save the project
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No external key found for the PSP element in field PSPNR
Message no. B1552
Diagnosis
The internal database key for a PSP element has been transferred in field PSPNR. The internal key must be converted into the external name. An external name could not be found for the value .
Procedure
Check the transferred value.
Does the PSP element exist in the system?
Has the internal database key been transferred correctly?
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Please advise what should be done