In SAS^® Clinical Standards Toolkit 1.6, compliance check SDTM0631 fails when the data contains no error. The cstcheck_notunique.sas sorts are done on col1 and col2 and a first.col1 is applied to see whether there are multiple occurrences of the value. Another sort is done on col2 and col1 to see whether multiple occurrences happen. The second sort is where the problem occurs, because this column can have multiple records. For example, if comparing VS testcode and vsorresu columns with values SBP/mmHg and DBP/mmHg, the expectation is that unique values for the testcode. The vsorresu column has mmHg for each row. This causes the second PROC SORT to fail since it does not have a unique value.

This issue does not exist in the current release of SAS Clinical Standards Toolkit 1.7. To resolve the issue, upgrade to this release.

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