| ERROR | (MXCHGDCL18) You cannot change workspace object to a dimension composite because one or more surrogates has been defined for it. |
| CAUSE | The user attempted to redefine a conjoint dimension as a composite, but the conjoint has one or more surrogates defined. A dimension that has surrogates cannot be redefined as a composite. |
| ACTION | Either delete all surrogates for the dimension, or do not attempt to redefine the dimension as a composite. |