@jw44250 - To add to richgalloway's comment, the more information and context you can provide to the Answers community, the better chances you have of another user providing a working solution to your question. It would be helpful if you provided your current search so that experts in the community have a starting point in order help you out.
This example assumes that you will have certain fields that naturally exist in both searches (server, _time) certain fields that each search will fill in (ProblemType, ProblemCode, ProblemMessage) and other fields that will be different for the two searches (SomeErrorStuff, SomeExceptionStuff).
[error search goes here]
| fields server _time ErrorCode ErrorMessage SomeErrorStuff
| eval ProblemType="Error"
| eval ProblemCode=ErrorCode
| eval ProblemMessage=ErrorMessage
| append
[
[exception search goes here]
| fields server _time ExceptionCode ExceptionMessage SomeExceptionStuff
| eval ProblemType="Exception"
| eval ProblemCode=ExceptionCode
| eval ProblemMessage=ExceptionMessage
]
| table server _time ProblemType ProblemCode ProblemMessage SomeErrorStuff SomeExceptionStuff
SomeErrorStuff and SomeExceptionStuff will be NULL in records that are not relevant to them.
What are your current searches?