CCM - Error Adding Catalog Items Approver

Hi all,

i'm working with CCM 2.0 on SRM 5.5, and i'm facing the following problem:

when i try to add an approver for master catalog clicking on "add new approver" button,

il Assigned Approvers an empty row (only date field is filled).

If i try to insert a User ID in "User Name" field and save the data, the following error appears:

<i>SAP Note

• The following error text was processed in the system:

An exception with the type CX_SY_DYN_CALL_ILLEGAL_TYPE occurred, but was neither handled locally, nor declared in a RAISING clause

Exception Class CX_SY_DYN_CALL_ILLEGAL_TYPE

Error Name

Program CL_BSP_MODEL==================CP

Include CL_BSP_MODEL==================CM00Q

ABAP Class CL_BSP_MODEL

Method IF_BSP_MODEL_UTIL~CONVERT_FROM_STRING

Line 122

Long text An actual parameter should be assigned to the formal parameter 'DATA' of the method 'INSTANTIATE_SIMPLE_DATA' of the class 'CL_BSP_UTILITY', even though the formal parameter is read-only. For this reason, youmust ensure that a field symbol is protected against changes if the field assigned using the ASSIGN statement is protected.</i>

No short DUMP in ST22 neither Errors in SLG1....

Someone knows a solution to this problem?

Thanks a lot!!!

Lorenzo