AB2D-5637 Enhance sandbox documentation based on connectathon feedback

api/src/main/java/gov/cms/ab2d/api/controller/common/ApiText.java

@@ -10,7 +10,7 @@ public class ApiText {
     public static final String BULK_RESPONSE = "Absolute URL of an endpoint for subsequent status requests (polling location)";
     public static final String RUNNING_JOBIDS = "URLs of currently running jobs. To cancel one of those jobs, invoke the Status DELETE call.";
     public static final String BULK_SINCE = "Beginning time of query. Returns all records \"since\" this time. At this time, it must be after " + SINCE_EARLIEST_DATE;
-    public static final String BULK_SINCE_DEFAULT = " If no value is provided, it will default to the last time a successful job was requested if it exists. This rule is NOT applied to sandbox contract matching Z0***.";
+    public static final String BULK_SINCE_DEFAULT = " If no value is provided, it will default to the last time a successful job was requested if it exists. The earliest accepted date is 2020-02-13T00:00:00.000-05:00";
     public static final String BULK_RESPONSE_LONG = "Absolute URL of an endpoint for subsequent status requests (polling location)";
     public static final String EXPORT_STARTED = "Export request has started";
     public static final String MAX_JOBS = "Too many jobs are currently running. Either wait for currently running jobs to finish or cancel some/all of those jobs.";