The extended program check (transaction: SLIN) displays errors pertaining to package creation.
Error: insufficient use access
Example: the program DEMOPROG_CALL_FLIGHTS calls the function module READ_FLIGHTS from another package. However, the calling program has no use access to call the outwardly visible function module.
The error entry in the Extended program check (SLIN) looks like:
Solution:
Define use access for the provider package interface. For more information, see Creating Use Accesses