>>>Hi everybody,
>>>
>>>What would be a better way to word the message:
>>>
>>>This guest can not be deleted because there is associated sales activity
>>>
>>>This guest can not be deleted because there are associated sales activities
>>>
>>>or
>>>
>>>is where a third better way?
>>>
>>>Thanks in advance.
>>
>>I agree with the advice to restructure the sentence, but if you stick with this, use "is."
>>
>>Tamar
>
>I went with Tracy's suggestion I got in private:
>
>Unable to delete this guest: Associated Sales activity exists.
>
>My colleagues all liked that suggestion.

My thinking was that there may be other reasons for not deleting and the information after the colon could change as required to display the correct reason.