SAP Message BOM044 - Update indicator &1 is invalid (valid : I, D, R)

Diagnosis
The CSAP_MAT_BOM_STOCK_TYPE_CREATE API module was called up to post amaterial variant. However, the system does not support the functionthat was transferred.

System Response
INCLUDE BOM_VERBUCHLAGABBRUCH

Procedure
Check the update indicator that was transferred. The valid values are
,,I,, Create
,,D,, Delete
,,R,, Change