The messages issued by the internal LMS access routine AMCB have the following format:
{AMCB} : xxxx  |  
where
xxxx     is the AMCB error key. 
xxxx  |  Meaning of AMCB error codes  |  
0000  |  No error  |  
0001  |  DMS error  |  
0002  |  Illegal op code  |  
0003  |  File name missing in control block  |  
0004  |  No / modified FCB address, or FCB address for FOP with DMS-OPEN points to active   |  
0005  |  Incorrect op code sequence  |  
0006  |  Library type invalid  |  
0007  |  Contradictory LIB types in control block  |  
0008  |  Library has been repaired  |  
0009  |  Library must be repaired  |  
0010  |  Address not within member limits  |  
0011  |  On writing: library limit reached  |  
0012  |  Contradictory information in control block and FCB  |  
0013  |  Supplementary information missing  |  
0014  |  Supplementary information missing  |  
0015  |  Record too long  |  
0017  |  Last member in library has been deleted  |  
0019  |  This is not an LMS library  |  
0022  |  Module not complete (e.g. no END record)  |  
0023  |  Incorrect record type in module  |  
0050  |  Overwrite error  |  
0051  |  Insufficient memory  |  
0052  |  Member has been overwritten  |  
0053  |  Input file is empty  |  
0054  |  Empty file is replaced  |  
0062  |  Function not implemented  |  
0063  |  No files present  |  
0066  |  First record not an ESD record  |  
0100  |  Illegal program file  |  
0101  |  DMS error  |  
0102  |  Unknown file type  |  
0107  |  Neither file name nor link name entered  |  
0108  |  User error  |  
0109  |  Open error  |  
0111  |  No free space in file table  |  
0112  |  FSTAT error  |  
0118  |  No empty file for CREATE  |  
0119  |  Open for empty file  |  
0120  |  File name invalid  |  
0121  |  File ID has no entry in file table  |  
0122  |  Requested open status different from actual status  |  
0123  |  No further space for FCB  |  
0124  |  No further space for access indicator in file table  |  
0125  |  Second access to output library  |  
0126  |  No further space for link table entry  |  
0127  |  Link table entry missing  |  
0131  |  Library still open for CTL or PRT  |  
0136  |  Access error, e.g. file locked  |  
0150  |  Access method not known  |