FABN0056E A SEGMENT REFERRED TO BY [DBD | PSB] member IS NOT FOUND IN DBD dbdname. DBD/PSB/ACB REVERSAL NAMED IT $FABNnnn AUTOMATICALLY

Explanation

DBD/PSB member referred to a segment in DBD dbdname, but the segment was not found in the DBD. The segment name was assigned by the DBD/PSB/ACB Reversal utility automatically in DBD/PSB member, because the name could not be obtained from any ACB members. $FABNnnn is the name assigned; nnn shows the segment code.