Hello @JuanS_OCS @Kurt_Bremser   Thank you for the feedback. I have included some more details.   I have populated the grpmems canonical table with the right columns and in the right format. . as defined usingh the %defineidgrpcols macro.   Here are the two scenarios which I tested: 1) Full code:   /* Initialize the macro variables that create canonical tables. */ %mduimpc();  /* Create the grpmems table for user/groups association to add to Metadata. */ data &idgrpmemstbla; %defineidgrpmemscols; infile datalines delimiter=',' missover; input grpkeyid memkeyid; datalines; MYGROUP,MYID ; * Load the information from the work library into the metadata server. */; %mduimplb();   See attachment MDUIMPLB_error_log_1.txt for full error log.   2) I populated the idgrps and persons canonical tables, filtering them down to just the relevant user and group. Full code:  /*To extract existing metadata content */ %mduextr(libref = work);  /*Filter idgrps and person tables to include only relevant group(s) and user(s)*/ data work.person; set work.person(where=(name="MYID")); run; data work.idgrps; set work.idgrps(where=(name="MYGROUP")); run;   /* Initialize the macro variables that create canonical tables. */ %mduimpc();   /* Create the grpmems table for user/groups association to add to Metadata. */ data &idgrpmemstbla; %defineidgrpmemscols; infile datalines delimiter=',' missover; input grpkeyid memkeyid; datalines; MYGROUP,MYID ; * Load the information from the work library into the metadata server. */; %mduimplb();     See attachment for MDUIMPLB_error_log_3.txt for full error log.   I am not sure what I am missing in the code or process.   Suggestions much appreciated.   ... View more