CSAP_MAT_BOM_MAINTAIN - strange errors (+)

Hello,

In my program, I use CSAP_MAT_BOM_MAINTAIN function module to edit BOMs. In most cases, it works correctly, but sometimes, when large amount of data is processed, it returns error message, which says that "There're no active nametabs for CI_STPO". When I restart program (with the same data), it works correctly.

R/3 Release 4.7E.