As part of participation in resource recovery, an APPC/MVS LU must exchange its log name with its partner resource managers. The LU might detect an error during the exchange log name transaction with the partner. To minimize the effect of these errors on APPC/MVS work, APPC/MVS periodically retries the exchange. Meanwhile, the LU is able to process only unprotected conversations.

Most of these errors require communication between the support groups for the applications involved in the exchange. Consider providing procedures for the installation's operators to follow, to resolve the error. For example, using an incorrect RRS GNAME when starting RRS would cause a log name mismatch to be detected by a partner LU. Ensure that the correct RRS GNAME is used from one RRS warm start to another.