In the attached spreadsheet you will see that there are three columns (Loan Number, TransID, and Related). What I would like for SAS to be able to do is to link every Loan Number that has the same TransID and put them in the Related column with a comma in between each one. So that if Loans COMM01 and COMM02 had the same TransID, in the Related column it would read COMM01, COMM02 for both of those loans. Loan Number TransID Related COMM0001 560 COMM0001, COMM0002 COMM0002 560 COMM0001, COMM0002 COMM0003 1727 COMM0003, COMM0004 COMM0004 1727 COMM0003, COMM0004 COMM0005 3032 COMM0005, COMM0006 COMM0006 3032 COMM0005, COMM0006 COMM0007 3591 COMM0007, COMM0008, COMM0009, COMM0010 COMM0008 3591 COMM0007, COMM0008, COMM0009, COMM0010 COMM0009 3591 COMM0007, COMM0008, COMM0009, COMM0010 COMM0010 3591 COMM0007, COMM0008, COMM0009, COMM0010 COMM0011 3971 COMM0011, COMM0012, COMM0013, COMM0014, COMM0015 COMM0012 3971 COMM0011, COMM0012, COMM0013, COMM0014, COMM0015 COMM0013 3971 COMM0011, COMM0012, COMM0013, COMM0014, COMM0015 COMM0014 3971 COMM0011, COMM0012, COMM0013, COMM0014, COMM0015 COMM0015 3971 COMM0011, COMM0012, COMM0013, COMM0014, COMM0015
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