| T2040 | FATAL ERROR: T2040 | ENTRY REFERENCES AN UNDEFINED BOUNDARY SURFACE id IN FIELD field |
| Cause: | The specified Bulk Data entry referenced boundary surface (BSSEG) that does not exist in the model database. | |
| Action: | Change reference to an existing boundary surface identification number, or add the referenced boundary surface to the model. | |
| Remarks: | None. |