Problem with polymorphic lookup

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Posted on by AnthonyAssaf

i have a problem with polymorphic lookup when trying to remove a table from it using polymorphic lookup manager in xrmtoolbox i got the following error relation ship cannot be deleted since it is not a custom entity relationship
the relationship is between PhoneCall that is a system table and applicant interview that is a custom table
also when trying to delete the relationship from the solution from the side of PhoneCall table or Applicant Interview Table i got the same error Entity Relationship: cr884_applicantinterview_PhoneCalls Cannot be deleted since it is not a custom entity relationship

the following picture is from xrm toolbox

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Dengliang Li Microsoft Employee on at

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Problem with polymorphic lookup

Hi,

I did not reproduce your problem in my testing.

My testing process is as follows.

The Applicant Interview table has a lookup field pointing to the Phone Call table.

I can remove this lookup field using the polymorphic lookup tool.

Best Regards,
Dengliang Li