Application Execution (AE) Messages › › IDAETERR15 - Mismatch on value of GROUP item OCCURS

IDAETERR15 - Mismatch on value of GROUP item OCCURS

Reason:

In a MOVE BY NAME or POSITION, the number of occurrences in all array sub-structures must match identically between the sending and receiving groups.

Normally, this error is caught at compile time. However, when the sending group is a program parameter field accepted under the dynamic matching rule and the receiving field is a structure with fixed occurrence count, a mismatch could occur at run-time when fewer than the declared number of occurrences are passed to the called-program parameter. A similar error can occur with a receiving parameter field and a fixed-occurrence sending field.

A similar problem can occur when sending and receiving fields contain DEP ON identifier-name array structures, and MOVE BY NAME fails to transfer the identifier-name referenced.

Action:

You can take several courses of action to alleviate a problem due to dynamic occurrence mismatch:

• Use identical matching to assure that a fixed number of occurrences always occur in the parameter passed to the called program.
• Determine the actual number of occurrences in the parameter structure that caused the error. Move the parameter structure into a variable occurrence structure that employs DEP ON identifiers in the structure. Preload the occurs-depending-on (ODO) counts before the move, so that structural counts match between named fields, then employ MOVE ... BY NAME.
• Determine the actual number of occurrences in the parameter structure that caused the error. Select one of several appropriate statements in your program that match the actual occurrences in the parameter source/target field:

       MOVE ... BY POSITION
       MOVE ... BY NAME
  

• Avoid MOVEs between fixed-occurrence groups and dynamic-occurrence parameter groups. Substitute moves between dynamic parameter groups that share the same occurrence counts. To alleviate a problem due to non-transferred DEP ON identifiers in MOVE BY NAME:

  Assure that the structures use identical names for all occurrence counts in both sending and receiving structures.

  Replace variably-occurring structures with fixed-occurring structures that do not require transfer of the occurrence identifiers.