SAP Message 62451 - Cond.categ. "&" and "&" excluded for cond. type "&"

Diagnosis
You have assigned the two condition categories "&V2&" and "&V3&" to thecondition type "&V1&". However these two categories are mutuallyexclusive.

System Response
The system will not accept your entries.

Procedure
Either delete one of the two condition categories or enter anothercondition category.